CVE-2025-32912

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.

Security Fix(es):

A flaw was found in libsoup, where the soup_headers_parse_request() function may be vulnerable to an out-of-bound read. This flaw allows a malicious user to use a specially crafted HTTP request to crash the HTTP server.(CVE-2025-32906)

A flaw was found in libsoup. SoupContentSniffer may be vulnerable to a NULL pointer dereference in the sniff_mp4 function. The HTTP server may cause the libsoup client to crash.(CVE-2025-32909)

A flaw was found in libsoup, where soup_auth_digest_authenticate() is vulnerable to a NULL pointer dereference. This issue may cause the libsoup client to crash.(CVE-2025-32910)

A flaw was found in libsoup, which is vulnerable to a use-after-free memory issue not on the heap in the soup_message_headers_get_content_disposition() function. This flaw allows a malicious HTTP client to cause memory corruption in the libsoup server.(CVE-2025-32911)

A flaw was found in libsoup, where SoupAuthDigest is vulnerable to a NULL pointer dereference. The HTTP server may cause the libsoup client to crash.(CVE-2025-32912)

A flaw was found in libsoup, where the soup_message_headers_get_content_disposition() function is vulnerable to a NULL pointer dereference. This flaw allows a malicious HTTP peer to crash a libsoup client or server that uses this function.(CVE-2025-32913)

A flaw was found in libsoup, where SoupAuthDigest is vulnerable to a NULL pointer dereference. The HTTP server may cause the libsoup client to crash.

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.

Security Fix(es):

• libsoup: Heap buffer over-read in skip_insignificant_space when sniffing content (CVE-2025-2784)
• libsoup: Out of bounds reads in soup_headers_parse_request() (CVE-2025-32906)
• libsoup: Denial of service on libsoup through HTTP/2 server (CVE-2025-32908)
• libsoup: NULL pointer dereference in client when server omits the "nonce" parameter in an Unauthorized response with Digest authentication (CVE-2025-32912)
• libsoup: OOB Read on libsoup through function "soup_multipart_new_from_message" in soup-multipart.c leads to crash or exit of process (CVE-2025-32914)
• libsoup: Information disclosure may leads libsoup client sends Authorization header to a different host when being redirected by a server (CVE-2025-46421)

For 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.

A flaw was found in libsoup, where SoupAuthDigest is vulnerable to a NULL pointer dereference. The HTTP server may cause the libsoup client to crash.

A flaw was found in libsoup, where SoupAuthDigest is vulnerable to a NULL pointer dereference. The HTTP server may cause the libsoup client to crash.

Libsoup: heap buffer over-read in skip_insignificant_space when sniffing content. (CVE-2025-2784) Libsoup: denial of service attack to websocket server. (CVE-2025-32049) Libsoup: integer overflow in append_param_quoted. (CVE-2025-32050) Libsoup: segmentation fault when parsing malformed data uri. (CVE-2025-32051) Libsoup: heap buffer overflow in sniff_unknown(). (CVE-2025-32052) Libsoup: heap buffer overflows in sniff_feed_or_html() and skip_insignificant_space(). (CVE-2025-32053) Libsoup: out of bounds reads in soup_headers_parse_request(). (CVE-2025-32906) Libsoup: denial of service in server when client requests a large amount of overlapping ranges with range header. (CVE-2025-32907) Libsoup: denial of service on libsoup through http/2 server. (CVE-2025-32908) Libsoup: null pointer dereference on libsoup through function "sniff_mp4" in soup-content-sniffer.c. (CVE-2025-32909) Libsoup: null pointer deference on libsoup via /auth/soup-auth-digest.c through "soup_auth_digest_authenticate" on client when server omits the "realm" parameter in an unauthorized response with digest authentication. (CVE-2025-32910) Libsoup: double free on soup_message_headers_get_content_disposition() through "soup-message-headers.c" via "params" ghashtable value. (CVE-2025-32911) Libsoup: null pointer dereference in client when server omits the "nonce" parameter in an unauthorized response with digest authentication. (CVE-2025-32912) Libsoup: null pointer dereference in soup_message_headers_get_content_disposition when "filename" parameter is present, but has no value in content-disposition header. (CVE-2025-32913) Libsoup: oob read on libsoup through function "soup_multipart_new_from_message" in soup-multipart.c leads to crash or exit of process. (CVE-2025-32914) Libsoup: memory leak on soup_header_parse_quality_list() via soup-headers.c. (CVE-2025-46420) Libsoup: information disclosure may leads libsoup client sends authorization header to a different host when being redirected by a server. (CVE-2025-46421) Libsoup: null pointer dereference in libsoup may lead to denial of service. (CVE-2025-4476) Libsoup: integer overflow in cookie expiration date handling in libsoup. (CVE-2025-4945)

These are all security issues fixed in the libsoup-2_4-1-2.74.3-11.1 package on the GA media of openSUSE Tumbleweed.

This update for libsoup fixes the following issues:

• CVE-2025-2784: Fixed heap buffer over-read in skip_insignificant_space when sniffing conten (bsc#1240750)
• CVE-2025-32050: Fixed integer overflow in append_param_quoted (bsc#1240752)
• CVE-2025-32051: Fixed segmentation fault when parsing malformed data URI (bsc#1240754)
• CVE-2025-32052: Fixed heap buffer overflow in sniff_unknown() (bsc#1240756)
• CVE-2025-32053: Fixed heap buffer overflows in sniff_feed_or_html() and skip_insignificant_space() (bsc#1240757)
• CVE-2025-32906: Fixed out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32907: Fixed excessive memory consumption in server when client requests a large amount of overlapping ranges in a single HTTP request (bsc#1241222)
• CVE-2025-32908: Fixed HTTP request may lead to server crash due to HTTP/2 server not fully validating the values of pseudo-headers (bsc#1241223)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32910: Fixed NULL pointer deference on client when server omits the realm parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32911: Fixed double free on soup_message_headers_get_content_disposition() via 'params' (bsc#1241238)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)
• CVE-2025-32914: Fixed out of bounds read in soup_multipart_new_from_message() (bsc#1241164)
• CVE-2025-46420: Fixed memory leak on soup_header_parse_quality_list() via soup-headers.c (bsc#1241686)
• CVE-2025-46421: Fixed HTTP Authorization Header leak via an HTTP redirect (bsc#1241688)

This update for libsoup fixes the following issues:

• CVE-2025-4948: Fixed integer underflow in soup_multipart_new_from_message() leading to denial of service (bsc#1243332)
• CVE-2025-4969: Fixed off-by-one out-of-bounds read may lead to infoleak (bsc#1243423)
• CVE-2025-32906: Fixed out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32910: Fixed null pointer deference on client when server omits the realm parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32911: Fixed double free on soup_message_headers_get_content_disposition() via 'params'. (bsc#1241238)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)

This update for libsoup fixes the following issues:

• CVE-2025-4948: Fixed integer underflow in soup_multipart_new_from_message() leading to denial of service (bsc#1243332)
• CVE-2025-4969: Fixed off-by-one out-of-bounds read may lead to infoleak (bsc#1243423)
• CVE-2025-32906: Fixed out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32910: Fixed null pointer deference on client when server omits the realm parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32911: Fixed double free on soup_message_headers_get_content_disposition() via 'params'. (bsc#1241238)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)

This update for libsoup2 fixes the following issues:

• CVE-2025-4948: Fixed integer underflow in soup_multipart_new_from_message() leading to denial of service (bsc#1243332)
• CVE-2025-4969: Fixed off-by-one out-of-bounds read may lead to infoleak (bsc#1243423)
• CVE-2025-32906: Fixed out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32910: Fixed null pointer deference on client when server omits the realm parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32911: Fixed double free on soup_message_headers_get_content_disposition() via 'params'. (bsc#1241238)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)

This update for libsoup2 fixes the following issues:

• CVE-2025-4948: Fixed integer underflow in soup_multipart_new_from_message() leading to denial of service (bsc#1243332)
• CVE-2025-4969: Fixed off-by-one out-of-bounds read may lead to infoleak (bsc#1243423)
• CVE-2025-32906: Fixed out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32910: Fixed null pointer deference on client when server omits the realm parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32911: Fixed double free on soup_message_headers_get_content_disposition() via 'params'. (bsc#1241238)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)

This update for libsoup fixes the following issues:

• CVE-2025-2784: Fixed heap buffer over-read in skip_insignificant_space when sniffing conten (bsc#1240750)
• CVE-2025-32050: Fixed integer overflow in append_param_quoted (bsc#1240752)
• CVE-2025-32051: Fixed segmentation fault when parsing malformed data URI (bsc#1240754)
• CVE-2025-32052: Fixed heap buffer overflow in sniff_unknown() (bsc#1240756)
• CVE-2025-32053: Fixed heap buffer overflows in sniff_feed_or_html() and skip_insignificant_space() (bsc#1240757)
• CVE-2025-32906: Fixed out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32907: Fixed excessive memory consumption in server when client requests a large amount of overlapping ranges in a single HTTP request (bsc#1241222)
• CVE-2025-32908: Fixed HTTP request may lead to server crash due to HTTP/2 server not fully validating the values of pseudo-headers (bsc#1241223)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32910: Fixed NULL pointer deference on client when server omits the realm parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32911: Fixed double free on soup_message_headers_get_content_disposition() via 'params' (bsc#1241238)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)
• CVE-2025-32914: Fixed out of bounds read in soup_multipart_new_from_message() (bsc#1241164)
• CVE-2025-46420: Fixed memory leak on soup_header_parse_quality_list() via soup-headers.c (bsc#1241686)
• CVE-2025-46421: Fixed HTTP Authorization Header leak via an HTTP redirect (bsc#1241688)

This update for libsoup fixes the following issues:

• CVE-2025-2784: Fixed heap buffer over-read in skip_insignificant_space when sniffing conten (bsc#1240750)
• CVE-2025-32050: Fixed integer overflow in append_param_quoted (bsc#1240752)
• CVE-2025-32051: Fixed segmentation fault when parsing malformed data URI (bsc#1240754)
• CVE-2025-32052: Fixed heap buffer overflow in sniff_unknown() (bsc#1240756)
• CVE-2025-32053: Fixed heap buffer overflows in sniff_feed_or_html() and skip_insignificant_space() (bsc#1240757)
• CVE-2025-32906: Fixed out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32907: Fixed excessive memory consumption in server when client requests a large amount of overlapping ranges in a single HTTP request (bsc#1241222)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32910: Fixed NULL pointer deference on client when server omits the realm parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)
• CVE-2025-32914: Fixed out of bounds read in soup_multipart_new_from_message() (bsc#1241164)
• CVE-2025-46420: Fixed memory leak on soup_header_parse_quality_list() via soup-headers.c (bsc#1241686)
• CVE-2025-46421: Fixed HTTP Authorization Header leak via an HTTP redirect (bsc#1241688)

This update for libsoup fixes the following issues:

• CVE-2025-2784: Fixed Heap buffer over-read in skip_insignificant_space when sniffing content (bsc#1240750)
• CVE-2025-32050: Fixed Integer overflow in append_param_quoted (bsc#1240752)
• CVE-2025-32051: Fixed Segmentation fault when parsing malformed data URI (bsc#1240754)
• CVE-2025-32052: Fixed Heap buffer overflow in sniff_unknown() (bsc#1240756)
• CVE-2025-32053: Fixed Heap buffer overflows in sniff_feed_or_html() and skip_insignificant_space() (bsc#1240757)
• CVE-2025-32913: Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)
• CVE-2025-32914: Fixed out of bounds read in soup_multipart_new_from_message() (bsc#1241164)
• CVE-2025-32912: Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32907: Fixed xcessive memory consumption in server when client requests a large amount of overlapping ranges in a single HTTP request (bsc#1241222)
• CVE-2025-32906: Fixed Out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-32908: Fixed HTTP request may lead to server crash due to HTTP/2 server not fully validating the values of pseudo-headers (bsc#1241223)
• CVE-2025-32909: Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32911: Fixed Double free on soup_message_headers_get_content_disposition() via "params" (bsc#1241238)
• CVE-2025-32910: Fixed null pointer deference on client when server omits the 'realm' parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-46420: Fixed Memory leak on soup_header_parse_quality_list() via soup-headers.c (bsc#1241686)
• CVE-2025-46421: Fixed HTTP Authorization Header leak via an HTTP redirect (bsc#1241688)

This update for libsoup fixes the following issues:

• CVE-2025-2784: Fixed Heap buffer over-read in skip_insignificant_space when sniffing content (bsc#1240750)
• CVE-2025-32050:Fixed Integer overflow in append_param_quoted (bsc#1240752)
• CVE-2025-32051:Fixed Segmentation fault when parsing malformed data URI (bsc#1240754)
• CVE-2025-32052:Fixed Heap buffer overflow in sniff_unknown() (bsc#1240756)
• CVE-2025-32053:Fixed Heap buffer overflows in sniff_feed_or_html() and skip_insignificant_space() (bsc#1240757)
• CVE-2025-32913:Fixed NULL pointer dereference in soup_message_headers_get_content_disposition (bsc#1241162)
• CVE-2025-32914:Fixed out of bounds read in soup_multipart_new_from_message() (bsc#1241164)
• CVE-2025-32912:Fixed NULL pointer dereference in SoupAuthDigest (bsc#1241214)
• CVE-2025-32907:Fixed excessive memory consumption in server when client requests a large amount of overlapping ranges in a single HTTP request (bsc#1241222)
• CVE-2025-32908:Fixed HTTP request leading to server crash due to HTTP/2 server not fully validating the values of pseudo-headers (bsc#1241223)
• CVE-2025-32909:Fixed NULL pointer dereference in the sniff_mp4 function in soup-content-sniffer.c (bsc#1241226)
• CVE-2025-32911:Fixed Double free on soup_message_headers_get_content_disposition() via "params" (bsc#1241238)
• CVE-2025-32910:Fixed null pointer deference on client when server omits the 'realm' parameter in an Unauthorized response with Digest authentication (bsc#1241252)
• CVE-2025-32906:Fixed Out of bounds reads in soup_headers_parse_request() (bsc#1241263)
• CVE-2025-46420:Fixed Memory leak on soup_header_parse_quality_list() via soup-headers.c (bsc#1241686)
• CVE-2025-46421:Fixed HTTP Authorization Header leak via an HTTP redirect (bsc#1241688)

Tan Wei Chong discovered that libsoup incorrectly handled memory when parsing HTTP request headers. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service. (CVE-2025-32906)

Alon Zahavi discovered that libsoup incorrectly parsed video files. An attacker could possibly use this issue to send a maliciously crafted HTTP response back to the client, causing a denial of service, or leading to undefined behavior. (CVE-2025-32909)

Jan Różański discovered that libsoup incorrectly handled memory when parsing authentication headers. An attacker could possibly use this issue to send a maliciously crafted HTTP response back to the client, causing a denial of service. (CVE-2025-32910, CVE-2025-32912)

It was discovered that libsoup incorrectly handled data in the hash table data type. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service or remote code execution. (CVE-2025-32911)

Jan Różański discovered that libsoup incorrectly handled memory when parsing the content disposition HTTP header. An attacker could possibly use this issue to send maliciously crafted data to a client or server, causing a denial of service. (CVE-2025-32913)

Alon Zahavi discovered that libsoup incorrectly handled memory when parsing HTTP requests. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service or obtaining sensitive information. (CVE-2025-32914)

It was discovered that libsoup incorrectly handled memory when parsing quality-list headers. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service. (CVE-2025-46420)

Jan Różański discovered that libsoup did not strip authorization information upon redirects. An attacker could possibly use this issue to obtain sensitive information. (CVE-2025-46421)

USN-7490-1 fixed vulnerabilities in libsoup. It was discovered that the fix for CVE-2025-32912 was incomplete. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Tan Wei Chong discovered that libsoup incorrectly handled memory when parsing HTTP request headers. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service. (CVE-2025-32906)

Alon Zahavi discovered that libsoup incorrectly parsed video files. An attacker could possibly use this issue to send a maliciously crafted HTTP response back to the client, causing a denial of service, or leading to undefined behavior. (CVE-2025-32909)

Jan Różański discovered that libsoup incorrectly handled memory when parsing authentication headers. An attacker could possibly use this issue to send a maliciously crafted HTTP response back to the client, causing a denial of service. (CVE-2025-32910, CVE-2025-32912)

It was discovered that libsoup incorrectly handled data in the hash table data type. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service or remote code execution. (CVE-2025-32911)

Jan Różański discovered that libsoup incorrectly handled memory when parsing the content disposition HTTP header. An attacker could possibly use this issue to send maliciously crafted data to a client or server, causing a denial of service. (CVE-2025-32913)

Alon Zahavi discovered that libsoup incorrectly handled memory when parsing HTTP requests. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service or obtaining sensitive information. (CVE-2025-32914)

It was discovered that libsoup incorrectly handled memory when parsing quality-list headers. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service. (CVE-2025-46420)

Jan Różański discovered that libsoup did not strip authorization information upon redirects. An attacker could possibly use this issue to obtain sensitive information. (CVE-2025-46421)

USN-7490-1 fixed vulnerabilities in libsoup2.4. This update provides the corresponding updates for libsoup3.

Original advisory details:

Tan Wei Chong discovered that libsoup incorrectly handled memory when parsing HTTP request headers. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service. (CVE-2025-32906)

Alon Zahavi discovered that libsoup incorrectly parsed video files. An attacker could possibly use this issue to send a maliciously crafted HTTP response back to the client, causing a denial of service, or leading to undefined behavior. (CVE-2025-32909)

Jan Różański discovered that libsoup incorrectly handled memory when parsing authentication headers. An attacker could possibly use this issue to send a maliciously crafted HTTP response back to the client, causing a denial of service. (CVE-2025-32910, CVE-2025-32912)

It was discovered that libsoup incorrectly handled data in the hash table data type. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service or remote code execution. (CVE-2025-32911)

Jan Różański discovered that libsoup incorrectly handled memory when parsing the content disposition HTTP header. An attacker could possibly use this issue to send maliciously crafted data to a client or server, causing a denial of service. (CVE-2025-32913)

Alon Zahavi discovered that libsoup incorrectly handled memory when parsing HTTP requests. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service or obtaining sensitive information. (CVE-2025-32914)

It was discovered that libsoup incorrectly handled memory when parsing quality-list headers. An attacker could possibly use this issue to send a maliciously crafted HTTP request to the server, causing a denial of service. (CVE-2025-46420)

Jan Różański discovered that libsoup did not strip authorization information upon redirects. An attacker could possibly use this issue to obtain sensitive information. (CVE-2025-46421)