{"id":"CVE-2026-102557","aliases":["ALSA-2026:83384","ALSA-2026:83618","ALSA-2026:84586","AZL-105546","CLSA-2026-1792464330","CLSA-2026-1792464596","CLSA-2026-1792514983","CLSA-2026-1792599160","CLSA-2026-1792600325","DEBIAN-CVE-2026-102557","EUVD-2026-89032","GHSA-fc8r-xmg7-v58h","OESA-2026-4667","OESA-2026-4668","OESA-2026-4669","OESA-2026-4781","RHSA-2026:83384","RHSA-2026:83618","RHSA-2026:84586","RLSA-2026:83384","RLSA-2026:84586","ROOT-OS-DEBIAN-13-CVE-2026-102557","SUSE-SU-2026:24368-1","SUSE-SU-2026:24470-1","SUSE-SU-2026:4616-1","SUSE-SU-2026:4631-1","SUSE-SU-2026:4690-1","SUSE-SU-2026:4703-1","SUSE-SU-2026:4739-1","UBUNTU-CVE-2026-102557","USN-8975-1","openSUSE-SU-2026:12084-1","openSUSE-SU-2026:22181-1"],"status":"published","title":"Libsoup: libsoup: heap buffer overflow during websocket message reassembly","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00467,"percentile":0.40904,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2026-09-29T16:11:57Z","modified":"2026-11-12T02:46:38Z","fixes":[{"ecosystem":"Azure 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libsoup: heap buffer overflow during websocket message reassembly","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T16:11:57.871Z","modified":"2026-11-11T12:48:44.547Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-11T13:28:04.456673Z"}],"euvd":[{"id":"EUVD-2026-89032","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T16:11:57Z","modified":"2026-11-11T12:48:44Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-11T14:28:59.314266Z"}],"ghsa":[{"id":"GHSA-fc8r-xmg7-v58h","title":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray,...","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T18:31:49Z","modified":"2026-11-11T15:30:46Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-11T15:34:47.187237Z"}],"nvd":[{"id":"CVE-2026-102557","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T17:17:06.6Z","modified":"2026-11-11T13:17:11.843Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-11T15:25:15.031694Z"}],"osv":[{"id":"CVE-2026-102557","title":"Libsoup: libsoup: heap buffer overflow during websocket message reassembly","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T16:11:57.871Z","modified":"2026-11-12T02:46:38.778263828Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-12T02:58:48.611889Z"},{"id":"DEBIAN-CVE-2026-102557","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T17:17:06.6Z","modified":"2026-11-12T09:47:40.296335365Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-12T10:16:18.390123Z"},{"id":"OESA-2026-4667","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.(CVE-2026-102556)\n\nA flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.(CVE-2026-102557)\n\nA flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow.(CVE-2026-102559)","status":"published","published":"2026-11-04T13:54:16Z","modified":"2026-11-04T14:00:05.225578418Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4668","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.(CVE-2026-102556)\n\nA flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.(CVE-2026-102557)\n\nA flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow.(CVE-2026-102559)","status":"published","published":"2026-11-04T13:54:17Z","modified":"2026-11-04T14:00:05.173384371Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4669","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.(CVE-2026-102556)\n\nA flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.(CVE-2026-102557)\n\nA flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow.(CVE-2026-102559)","status":"published","published":"2026-11-04T13:54:18Z","modified":"2026-11-04T14:00:04.825077084Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4781","title":"libsoup security update","description":"libsoup is an HTTP client/server library for GNOME. It uses GObjects and the glib main loop, to integrate well with GNOME applications, and also has a synchronous API, for use in threaded applications.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.(CVE-2026-102556)\n\nA flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.(CVE-2026-102557)\n\nA flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow.(CVE-2026-102559)","status":"published","published":"2026-11-11T12:26:06Z","modified":"2026-11-11T12:45:06.201711979Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-11T13:08:46.301371Z"},{"id":"RHSA-2026:83384","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-10-15T10:29:00Z","modified":"2026-10-20T10:17:13Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RHSA-2026:83618","title":"Red Hat Security Advisory: libsoup3 security update","status":"published","published":"2026-10-16T10:27:35Z","modified":"2026-10-20T10:17:19Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RHSA-2026:84586","title":"Red Hat Security Advisory: libsoup security update","status":"published","published":"2026-10-19T10:08:03Z","modified":"2026-10-20T10:17:36Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RLSA-2026:83384","title":"Important: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.\n\nSecurity Fix(es):\n\n* libsoup: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion (CVE-2026-102556)\n\n* libsoup: libsoup: Heap buffer overflow during WebSocket message reassembly (CVE-2026-102557)\n\n* libsoup: libsoup: Heap buffer overflow during WebSocket receive-buffer growth (CVE-2026-102558)\n\n* libsoup: libsoup: Heap buffer overflow during WebSocket client-frame masking (CVE-2026-102559)\n\n* libsoup: libsoup: Heap buffer overflow during outgoing permessage-deflate buffer growth (CVE-2026-102560)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-10-16T12:05:26.574296Z","modified":"2026-10-16T12:45:03.599996476Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:84586","title":"Important: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.\n\nSecurity Fix(es):\n\n* libsoup: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion (CVE-2026-102556)\n\n* libsoup: libsoup: Heap buffer overflow during WebSocket message reassembly (CVE-2026-102557)\n\n* libsoup: libsoup: Heap buffer overflow during WebSocket receive-buffer growth (CVE-2026-102558)\n\n* libsoup: libsoup: Heap buffer overflow during WebSocket client-frame masking (CVE-2026-102559)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-10-20T12:01:08.472702Z","modified":"2026-10-20T12:15:39.336669468Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.76659Z"},{"id":"UBUNTU-CVE-2026-102557","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T17:17:00Z","modified":"2026-11-04T03:30:18.398737197Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-04T03:56:39.110241Z"},{"id":"ALSA-2026:83384","title":"Important: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.  \n\nSecurity Fix(es):  \n\n  * libsoup: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion (CVE-2026-102556)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket message reassembly (CVE-2026-102557)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket receive-buffer growth (CVE-2026-102558)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket client-frame masking (CVE-2026-102559)\n  * libsoup: libsoup: Heap buffer overflow during outgoing permessage-deflate buffer growth (CVE-2026-102560)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-10-15T00:00:00Z","modified":"2026-10-29T11:32:38.306779498Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:83618","title":"Important: libsoup3 security update","description":"Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages. libsoup uses the Glib main loop and is designed to work well with GTK applications. This enables GNOME applications to access HTTP servers on the network in a completely asynchronous fashion, very similar to the Gtk+ programming model (a synchronous operation mode is also supported for those who want it), but the SOAP parts were removed long ago.  \n\nSecurity Fix(es):  \n\n  * libsoup: libsoup: Heap buffer overflow via uninitialized length in data-URI base64 decoding (CVE-2026-102555)\n  * libsoup: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion (CVE-2026-102556)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket message reassembly (CVE-2026-102557)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket receive-buffer growth (CVE-2026-102558)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket client-frame masking (CVE-2026-102559)\n  * libsoup: libsoup: Heap buffer overflow during outgoing permessage-deflate buffer growth (CVE-2026-102560)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-10-15T00:00:00Z","modified":"2026-10-29T11:31:00.404114768Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:84586","title":"Important: libsoup security update","description":"The libsoup packages provide an HTTP client and server library for GNOME.  \n\nSecurity Fix(es):  \n\n  * libsoup: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion (CVE-2026-102556)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket message reassembly (CVE-2026-102557)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket receive-buffer growth (CVE-2026-102558)\n  * libsoup: libsoup: Heap buffer overflow during WebSocket client-frame masking (CVE-2026-102559)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-10-19T00:00:00Z","modified":"2026-10-29T11:02:25.108600303Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"AZL-105546","title":"CVE-2026-102557 affecting package libsoup for versions less than 3.4.4-18","description":"A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used the full length, leading to heap corruption or a crash.","status":"published","published":"2026-09-29T17:17:06Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:17.719431Z"},{"id":"CLSA-2026-1792464330","title":"libsoup: Fix of 4 CVEs","description":"- CVE-2026-102557, CVE-2026-102559: cap WebSocket message reassembly and\n  outgoing frames at the GByteArray size limit\n- CVE-2026-102558: cap incoming WebSocket frame payloads at the receive\n  buffer limit\n- CVE-2026-102556: emit the WebSocket pong signal with a GBytes\n- CVE-2026-3099: reject replayed and unissued nonces in SoupAuthDomainDigest","status":"published","published":"2026-10-20T02:45:44Z","modified":"2026-10-26T09:43:53.367005517Z","updated_at":"2026-11-02T15:43:54.378946Z"},{"id":"CLSA-2026-1792464596","title":"libsoup: Fix of 4 CVEs","description":"- CVE-2026-102557, CVE-2026-102559: cap WebSocket message reassembly and\n  outgoing frames at the GByteArray size limit\n- CVE-2026-102558: cap incoming WebSocket frame payloads at the receive\n  buffer limit\n- CVE-2026-102556: emit the WebSocket pong signal with a GBytes\n- CVE-2026-3099: reject replayed and unissued nonces in SoupAuthDomainDigest","status":"published","published":"2026-10-20T02:50:10Z","modified":"2026-10-26T09:43:49.594136244Z","updated_at":"2026-11-02T15:43:54.378946Z"},{"id":"CLSA-2026-1792514983","title":"libsoup: Fix of 4 CVEs","description":"- CVE-2026-102557, CVE-2026-102559: cap WebSocket message reassembly and\n  outgoing frames at the GByteArray size limit\n- CVE-2026-102558: cap incoming WebSocket frame payloads at the receive\n  buffer limit\n- CVE-2026-102556: emit the WebSocket pong signal with a GBytes\n- CVE-2026-3099: reject replayed and unissued nonces in SoupAuthDomainDigest","status":"published","published":"2026-10-20T16:49:54Z","modified":"2026-10-26T09:43:24.111806212Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792599160","title":"libsoup: Fix of 6 CVEs","description":"- CVE-2026-102555: decode base64 data: URI content with g_base64_decode_step()\n  over the real buffer length in soup_request_data_send(), so a percent-encoded\n  NUL no longer truncates the payload, leaks the decode buffer and raises a\n  GLib-CRITICAL\n- CVE-2026-102556: emit the WebSocket ::pong signal with a GBytes, as the signal\n  and the public header have always declared, instead of a GByteArray, removing\n  the type confusion a crafted Pong frame could turn into heap corruption in any\n  handler that honours the documented API\n- CVE-2026-102557: cap a reassembled WebSocket message at what a GByteArray can\n  hold before each fragment is appended in process_contents(), so a run of\n  fragments can no longer truncate the guint size passed to\n  g_byte_array_sized_new()/g_byte_array_append() while the full length is used\n- CVE-2026-102558: reject an incoming frame whose declared payload exceeds what\n  the receive buffer can represent as soon as the header is parsed, so the\n  incoming GByteArray can no longer grow until g_byte_array_set_size() wraps and\n  the read writes past the allocation\n- CVE-2026-102559: reject an outgoing payload above MAX_OUTGOING_PAYLOAD_SIZE in\n  send_message(), both before and after extensions have processed it, so a\n  masked client frame can no longer be built in a truncated GByteArray while\n  xor_with_mask() writes the full payload length past the allocation\n- CVE-2026-102560: refuse an outgoing permessage-deflate payload whose\n  deflateBound() exceeds G_MAXUINT and bound every incremental buffer growth, so\n  a truncated bound can no longer let zlib write past the allocated GByteArray","status":"published","published":"2026-10-21T16:12:56Z","modified":"2026-10-26T09:31:01.469866188Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792600325","title":"libsoup: Fix of 6 CVEs","description":"- CVE-2026-102555: decode base64 data: URI content with g_base64_decode_step()\n  over the real buffer length in soup_request_data_send(), so a percent-encoded\n  NUL no longer truncates the payload, leaks the decode buffer and raises a\n  GLib-CRITICAL\n- CVE-2026-102556: emit the WebSocket ::pong signal with a GBytes, as the signal\n  and the public header have always declared, instead of a GByteArray, removing\n  the type confusion a crafted Pong frame could turn into heap corruption in any\n  handler that honours the documented API\n- CVE-2026-102557: cap a reassembled WebSocket message at what a GByteArray can\n  hold before each fragment is appended in process_contents(), so a run of\n  fragments can no longer truncate the guint size passed to\n  g_byte_array_sized_new()/g_byte_array_append() while the full length is used\n- CVE-2026-102558: reject an incoming frame whose declared payload exceeds what\n  the receive buffer can represent as soon as the header is parsed, so the\n  incoming GByteArray can no longer grow until g_byte_array_set_size() wraps and\n  the read writes past the allocation\n- CVE-2026-102559: reject an outgoing payload above MAX_OUTGOING_PAYLOAD_SIZE in\n  send_message(), both before and after extensions have processed it, so a\n  masked client frame can no longer be built in a truncated GByteArray while\n  xor_with_mask() writes the full payload length past the allocation\n- CVE-2026-102560: refuse an outgoing permessage-deflate payload whose\n  deflateBound() exceeds G_MAXUINT and bound every incremental buffer growth, so\n  a truncated bound can no longer let zlib write past the allocated GByteArray","status":"published","published":"2026-10-22T01:36:08Z","modified":"2026-10-26T09:31:36.615339652Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"openSUSE-SU-2026:12084-1","title":"libsoup-2_4-1-2.74.3-24.1 on GA media","description":"These are all security issues fixed in the libsoup-2_4-1-2.74.3-24.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-08T00:00:00Z","modified":"2026-10-09T17:23:13.819472723Z","updated_at":"2026-11-02T16:58:40.245664Z"},{"id":"openSUSE-SU-2026:22181-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12547: Header \"Proxy-Authorization\" leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers\n  via an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-29T10:24:12Z","modified":"2026-10-31T18:00:09.296668455Z","updated_at":"2026-11-02T16:58:42.426393Z"},{"id":"ROOT-OS-DEBIAN-13-CVE-2026-102557","title":"CVE-2026-102557 in libsoup3 - Patched by Root","description":"Root has patched CVE-2026-102557 in the libsoup3 package for Root:Debian:13. Multiple fixed versions available.","status":"published","published":"2026-11-04T14:29:10Z","modified":"2026-11-04T15:15:06.163893361Z","updated_at":"2026-11-04T15:39:09.547857Z"},{"id":"SUSE-SU-2026:24368-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12547: Header \"Proxy-Authorization\" leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers\n  via an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-21T08:56:44Z","modified":"2026-10-27T17:23:18.80097485Z","updated_at":"2026-11-02T15:54:04.519245Z"},{"id":"SUSE-SU-2026:24470-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12547: Header \"Proxy-Authorization\" leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15712: SoupClientMessageIOHTTP2: HTTP/2 GOAWAY frame parsing heap buffer over-read via invalid NUL-\n  termination assumption (bsc#1271447).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers\n  via an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-29T10:24:20Z","modified":"2026-11-04T17:23:18.62343932Z","updated_at":"2026-11-04T17:43:22.558805Z"},{"id":"SUSE-SU-2026:4616-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n","status":"published","published":"2026-10-12T07:21:28Z","modified":"2026-10-13T10:30:04.879685509Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4631-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-102555: Heap buffer overflow via uninitialized length in data-URI base64 decoding (bsc#1283299).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n","status":"published","published":"2026-10-12T15:25:46Z","modified":"2026-10-13T10:30:06.857496744Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4690-1","title":"Security update for libsoup","description":"This update for libsoup fixes the following issues:\n\n- CVE-2026-12478: websocket: Fix out-of-bounds read when reading unmasked frame (bsc#1271401).\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-16T08:41:55Z","modified":"2026-10-17T10:00:05.096101754Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4703-1","title":"Security update for libsoup2","description":"This update for libsoup2 fixes the following issues:\n\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-77014: Integer truncation in sort_ranges() comparator causes silent omission of HTTP Range responses\n  (bsc#1275988).\n- CVE-2026-77680: quadratic CPU denial of service in HTTP Range coalescing after the CVE-2025-32907 fix (bsc#1276759).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-16T13:29:46Z","modified":"2026-10-17T10:00:04.12517112Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"SUSE-SU-2026:4739-1","title":"Security update for libsoup2","description":"This update for libsoup2 fixes the following issues:\n\n- CVE-2026-12547: Header 'Proxy-Authorization' leads to credentials being send to different proxy after proxy switch\n  (bsc#1272195).\n- CVE-2026-15711: SoupWebsocketConnection: WebSocket remote denial of service via oversized control frame protocol\n  violation (bsc#1271446).\n- CVE-2026-15713: SoupCache: libsoup: HTTP/2 frame window exhaustion remote denial of service via memory leak\n  (bsc#1271448).\n- CVE-2026-15714: SoupMultipartInputStream: libsoup: Out-of-bounds read in soup_multipart_input_stream_read_headers via\n  an oversized multipart boundary string (bsc#1271449).\n- CVE-2026-66339: proxy credentials leak to destination server via `Proxy-Authorization` header in CONNECT tunnels\n  (bsc#1273156).\n- CVE-2026-77014: Integer truncation in sort_ranges() comparator causes silent omission of HTTP Range responses\n  (bsc#1275988).\n- CVE-2026-77680: quadratic CPU denial of service in HTTP Range coalescing after the CVE-2025-32907 fix (bsc#1276759).\n- CVE-2026-102556: Heap buffer overflow from WebSocket Pong signal type confusion (bsc#1283300).\n- CVE-2026-102557: Heap buffer overflow during WebSocket message reassembly (bsc#1283301).\n- CVE-2026-102558: Heap buffer overflow during WebSocket receive-buffer growth (bsc#1283302).\n- CVE-2026-102559: Heap buffer overflow during WebSocket client-frame masking (bsc#1283303).\n- CVE-2026-102560: Heap buffer overflow during outgoing permessage-deflate buffer growth (bsc#1283304).\n- CVE-2026-103399: incomplete request body draining in HTTP/1.x early responses can allow HTTP request smuggling\n  (bsc#1283831).\n","status":"published","published":"2026-10-19T12:59:37Z","modified":"2026-10-20T10:45:04.185304919Z","updated_at":"2026-11-02T15:54:05.838224Z"},{"id":"USN-8975-1","title":"libsoup2.4, libsoup3 vulnerabilities","description":"It was discovered that libsoup incorrectly handled certain WebSocket\nframes. A remote attacker could possibly use this issue to cause an\napplication to crash or expose sensitive information. This issue only\naffected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 26.04 LTS, and Ubuntu\n26.10. (CVE-2026-12478)\n\nIt was discovered that libsoup incorrectly handled certain data URIs. A\nremote attacker could possibly use this issue to cause an application to\ncrash or expose sensitive information. This issue only affected Ubuntu\n22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 26.04 LTS, and Ubuntu 26.10.\n(CVE-2026-102555)\n\nIt was discovered that libsoup incorrectly handled certain WebSocket\nmessages. A remote attacker could possibly use this issue to cause an\napplication to crash. This issue only affected Ubuntu 18.04 LTS, Ubuntu\n20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 26.04 LTS, and\nUbuntu 26.10. (CVE-2026-102556)\n\nIt was discovered that libsoup incorrectly handled fragmented WebSocket\nmessages. A remote attacker could possibly use this issue to cause an\napplication to crash. (CVE-2026-102557)\n\nIt was discovered that libsoup incorrectly handled certain WebSocket\nframes. A remote attacker could possibly use this issue to cause an\napplication to crash. This issue only affected Ubuntu 18.04 LTS, Ubuntu\n20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 26.04 LTS, and\nUbuntu 26.10. (CVE-2026-102558)\n\nIt was discovered that libsoup incorrectly handled large WebSocket\nmessages. An attacker could possibly use this issue to cause an\napplication to crash. (CVE-2026-102559)\n\nIt was discovered that libsoup incorrectly handled compressed WebSocket\nmessages. An attacker could possibly use this issue to cause an\napplication to crash. This issue only affected Ubuntu 20.04 LTS, Ubuntu\n22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 26.04 LTS, and Ubuntu 26.10.\n(CVE-2026-102560)\n\nIt was discovered that libsoup did not properly handle certain HTTP\nrequests. A remote attacker could possibly use this issue to inject\narbitrary HTTP requests. (CVE-2026-103399)\n\nIt was discovered that libsoup incorrectly handled proxy credentials. A\nremote attacker could possibly use this issue to obtain sensitive\ninformation. (CVE-2026-12547)\n\nIt was discovered that libsoup incorrectly handled multipart messages. A\nremote attacker could possibly use this issue to cause an application to\ncrash or obtain sensitive information. (CVE-2026-12548)","status":"published","published":"2026-11-03T16:06:30Z","modified":"2026-11-04T03:43:15.637548273Z","updated_at":"2026-11-04T03:56:18.279609Z"}]}}