{"id":"CVE-2026-12932","aliases":["ALPINE-CVE-2026-12932","DEBIAN-CVE-2026-12932","EUVD-2026-51241","GHSA-93p4-5c7j-q5rx","MGASA-2026-0236","OESA-2026-2917","OESA-2026-2918","OESA-2026-3001","OESA-2026-3929","SUSE-SU-2026:24220-1","SUSE-SU-2026:3596-1","UBUNTU-CVE-2026-12932","openSUSE-SU-2026:22072-1"],"status":"published","title":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2...","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted 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Notes","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12932","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-93p4-5c7j-q5rx"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-12932","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12932.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-12932","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0236.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35840","tags":["report"]},{"url":"https://github.com/OpenVPN/openvpn/releases/tag/v2.6.21","tags":["web"]},{"url":"https://lists.debian.org/debian-security-announce/2026/msg00287.html","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3GB3J43NMV2S6RIUKB3FSX5H6RA4KP7/","tags":["web"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2917","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11771","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12996","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13117","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13122","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13698","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2918","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3001","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3929","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202624220-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1267944","tags":["report"]},{"url":"https://bugzilla.suse.com/1267945","tags":["report"]},{"url":"https://bugzilla.suse.com/1273126","tags":["report"]},{"url":"https://bugzilla.suse.com/1273127","tags":["report"]},{"url":"https://bugzilla.suse.com/1273128","tags":["report"]},{"url":"https://bugzilla.suse.com/1273129","tags":["report"]},{"url":"https://bugzilla.suse.com/1273130","tags":["report"]},{"url":"https://bugzilla.suse.com/1275310","tags":["report"]},{"url":"https://bugzilla.suse.com/1279613","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-11771","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12932","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12996","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-13117","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-13379","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-35058","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40215","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-63650","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-84732","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20263596-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-12932","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-12932","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-8540-1","tags":["advisory"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-12932","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets","status":"published","published":"2026-07-30T16:42:03.164Z","modified":"2026-09-17T18:35:35.77Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-51241","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets","status":"published","published":"2026-07-30T16:42:03Z","modified":"2026-09-17T18:35:35Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:28:10.833571Z"}],"ghsa":[{"id":"GHSA-93p4-5c7j-q5rx","title":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2...","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets","status":"published","published":"2026-07-30T18:31:40Z","modified":"2026-08-05T21:32:37Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","level":"high"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T15:10:08.59251Z"}],"nvd":[{"id":"CVE-2026-12932","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted 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packets","status":"published","published":"2026-07-30T17:16:27.92Z","modified":"2026-10-01T02:17:49.177642289Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:50.269992Z"},{"id":"CVE-2026-12932","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets","status":"published","published":"2026-07-30T16:42:03.164Z","modified":"2026-10-28T02:31:14.458927001Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T15:44:57.354194Z"},{"id":"DEBIAN-CVE-2026-12932","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets","status":"published","published":"2026-07-30T17:16:27.92Z","modified":"2026-10-01T03:02:22.902527152Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:51.374409Z"},{"id":"OESA-2026-2917","title":"openvpn security update","description":"OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations,  including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing,  failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security,  OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.\r\n\r\nSecurity Fix(es):\n\n(CVE-2026-11771)\n\n(CVE-2026-12932)\n\n(CVE-2026-12996)\n\n(CVE-2026-13117)\n\nOpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled(CVE-2026-13122)\n\nA memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service(CVE-2026-13698)","status":"published","published":"2026-07-09T11:11:49Z","modified":"2026-08-18T01:21:15.921502799Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"OESA-2026-2918","title":"openvpn security update","description":"OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations,  including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing,  failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security,  OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.\r\n\r\nSecurity Fix(es):\n\n(CVE-2026-11771)\n\n(CVE-2026-12932)\n\n(CVE-2026-12996)\n\n(CVE-2026-13117)\n\nOpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled(CVE-2026-13122)\n\nA memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service(CVE-2026-13698)","status":"published","published":"2026-07-09T11:11:49Z","modified":"2026-08-18T01:21:15.759682823Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"OESA-2026-3001","title":"openvpn security update","description":"OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations,  including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing,  failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security,  OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.\r\n\r\nSecurity Fix(es):\n\n(CVE-2026-11771)\n\n(CVE-2026-12932)\n\n(CVE-2026-12996)\n\n(CVE-2026-13117)\n\nOpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled(CVE-2026-13122)\n\nA memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service(CVE-2026-13698)","status":"published","published":"2026-07-19T11:11:54Z","modified":"2026-08-18T01:21:18.126218404Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"OESA-2026-3929","title":"openvpn security update","description":"OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations,  including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing,  failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security,  OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.\r\n\r\nSecurity Fix(es):\n\nA memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets\n(CVE-2026-12932)","status":"published","published":"2026-09-20T13:23:19Z","modified":"2026-09-20T13:30:25.603852011Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"UBUNTU-CVE-2026-12932","description":"A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets","status":"published","published":"2026-07-03T00:00:00Z","modified":"2026-08-06T22:15:11.579983672Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:00.592716Z"},{"id":"MGASA-2026-0236","title":"Updated openvpn packages fix security vulnerabilities","description":"The updated packages fix security vulnerabilities:\nPossible 1-byte buffer overrun on NTLMv2 proxy responses.\n(CVE-2026-11771)\nMemory-leak in tls-crypt-v2 client key handling that could lead to\nout-of-memory situations and subsequent server crashes. (CVE-2026-12932)\nUse-after-free bug in ack_write_buf(), triggerable by a well-timed\nsequence of control channel + authentication packets. (CVE-2026-12996)\nUse-after-free bug in tls_wrap_reneg(), triggerable by suitable sequence\nof dynamic tls-crypt control-channel packets. (CVE-2026-13117)\nServer crash on reception of suitably malformed auth-token, if\n--auth-gen-token external-auth is active. (CVE-2026-13122)\nAnother memory leak on reception of suitable tls-crypt-v2 packets that\ncould lead to an out of memory situation and server crash.\n(CVE-2026-13698)\n","status":"published","published":"2026-07-08T16:36:03Z","modified":"2026-07-08T16:45:05.314177777Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:22072-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- CVE-2026-11771: NTLM proxy auth stack off-by-one write (bsc#1273126).\n- CVE-2026-12932: memory leak using --tls-crypt-v2 (bsc#1273127).\n- CVE-2026-12996: Potential DoS and memory leak via TLS session use-after-free (bsc#1273128).\n- CVE-2026-13117: Heap use-after-free via incomplete guard in check_session_buf_not_used() (bsc#1273129).\n- CVE-2026-13379: Windows interactive service DNS SearchList state pollution (bsc#1273130).\n- CVE-2026-35058: improper validation of packet length can lead to a denial of service (bsc#1267945).\n- CVE-2026-40215: race condition during TLS session promotion can lead to a use-after-free (bsc#1267944).\n- CVE-2026-63650: OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be misidentified\n  by ignoring the configured X.509 username identity lookup field (bsc#1275310).\n- CVE-2026-84732: Remote Denial of Service via crafted ACK packets (bsc#1279613).\n","status":"published","published":"2026-10-09T12:16:22Z","modified":"2026-10-19T17:23:12.593997822Z","updated_at":"2026-11-02T16:58:42.426393Z"},{"id":"SUSE-SU-2026:24220-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- CVE-2026-11771: NTLM proxy auth stack off-by-one write (bsc#1273126).\n- CVE-2026-12932: memory leak using --tls-crypt-v2 (bsc#1273127).\n- CVE-2026-12996: Potential DoS and memory leak via TLS session use-after-free (bsc#1273128).\n- CVE-2026-13117: Heap use-after-free via incomplete guard in check_session_buf_not_used() (bsc#1273129).\n- CVE-2026-13379: Windows interactive service DNS SearchList state pollution (bsc#1273130).\n- CVE-2026-35058: improper validation of packet length can lead to a denial of service (bsc#1267945).\n- CVE-2026-40215: race condition during TLS session promotion can lead to a use-after-free (bsc#1267944).\n- CVE-2026-63650: OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be misidentified\n  by ignoring the configured X.509 username identity lookup field (bsc#1275310).\n- CVE-2026-84732: Remote Denial of Service via crafted ACK packets (bsc#1279613).\n","status":"published","published":"2026-10-09T12:13:13Z","modified":"2026-10-21T17:23:14.847518378Z","updated_at":"2026-11-02T15:54:04.519245Z"},{"id":"SUSE-SU-2026:3596-1","title":"Security update for openvpn","description":"This update for openvpn fixes the following issues:\n\n- CVE-2026-11771: NTLM proxy auth stack off-by-one write (bsc#1273126).\n- CVE-2026-12932: memory leak using --tls-crypt-v2 (bsc#1273127).\n- CVE-2026-12996: Potential DoS and memory leak via TLS session use-after-free (bsc#1273128).\n- CVE-2026-13117: Heap use-after-free via incomplete guard in check_session_buf_not_used() (bsc#1273129).\n- CVE-2026-13379: Windows interactive service DNS SearchList state pollution (bsc#1273130).\n- CVE-2026-35058: improper validation of packet length can lead to a denial of service (bsc#1267945).\n- CVE-2026-40215: race condition during TLS session promotion can lead to a use-after-free (bsc#1267944).\n","status":"published","published":"2026-08-12T11:37:58Z","modified":"2026-08-13T09:30:12.385392768Z","updated_at":"2026-11-02T15:54:05.392906Z"}]}}