CVE catalog

CVE-2026-13122

OpenVPN 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 ext

[CVE catalog]

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Jul 5, 2026, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.46% · Oct 25, 2026

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	openvpn	sid	`2.7.8-1`	fixed
Debian	openvpn	forky	`2.7.8-1`	fixed
Debian	openvpn	trixie	`2.6.14-1+deb13u3`	fixed
Debian	openvpn	trixie-security	`2.6.14-1+deb13u3`	fixed
Debian	openvpn	bookworm	`2.6.14-0+deb12u2`	fixed
Debian	openvpn	bookworm-security	`2.6.14-0+deb12u2`	fixed
Cpe	openvpn	Not reported	`2.6.21`	fixed
Cpe	openvpn	Not reported	`2.7.5`	fixed
Cpe	openvpn	Not reported	`2.6.14-0+deb12u2`	fixed
Cpe	openvpn	Not reported	`2.6.19-0ubuntu0.24.04.3`	fixed
Alpine	openvpn	3.24	`2.7.5-r0`	fixed
Opensuse	openvpn	tumbleweed	`2.7.5-1.1`	fixed
Opensuse	openvpn	leap 16.0	`2.6.10-160000.4.1`	fixed
Suse	openvpn	linux enterprise module for basesystem 15 sp7	`2.6.10-150600.3.23.1`	fixed
Suse	openvpn-dco	linux enterprise module for basesystem 15 sp7	`2.6.10-150600.3.23.1`	fixed
Suse	openvpn	linux enterprise server 15 sp6-ltss	`2.6.10-150600.3.23.1`	fixed
Suse	openvpn-dco	linux enterprise server 15 sp6-ltss	`2.6.10-150600.3.23.1`	fixed
Suse	openvpn	linux enterprise server for sap applications 15 sp6	`2.6.10-150600.3.23.1`	fixed
Suse	openvpn-dco	linux enterprise server for sap applications 15 sp6	`2.6.10-150600.3.23.1`	fixed
Ubuntu	openvpn	24.04	`2.6.5-0ubuntu1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.7-1ubuntu1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu2`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu3`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu4`	vulnerable
Ubuntu	openvpn	24.04	`2.6.9-1ubuntu4.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.12-0ubuntu0.24.04.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.12-0ubuntu0.24.04.3`	vulnerable
Ubuntu	openvpn	24.04	`2.6.14-0ubuntu0.24.04.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.14-0ubuntu0.24.04.2`	vulnerable
Ubuntu	openvpn	24.04	`2.6.14-0ubuntu0.24.04.3`	vulnerable
Ubuntu	openvpn	24.04	`2.6.19-0ubuntu0.24.04.1`	vulnerable
Ubuntu	openvpn	24.04	`2.6.19-0ubuntu0.24.04.2`	vulnerable
Ubuntu	openvpn	24.04	`2.6.19-0ubuntu0.24.04.3`	fixed
Ubuntu	openvpn	25.10	`2.6.13-1ubuntu3`	vulnerable
Ubuntu	openvpn	25.10	`2.6.14-1ubuntu1`	vulnerable
Ubuntu	openvpn	25.10	`2.6.14-2ubuntu1`	vulnerable
Ubuntu	openvpn	25.10	`2.6.14-2ubuntu1.1`	vulnerable
Ubuntu	openvpn	25.10	`2.6.19-0ubuntu0.25.10.1`	vulnerable
Ubuntu	openvpn	25.10	`2.6.19-0ubuntu0.25.10.2`	vulnerable
Ubuntu	openvpn	26.04	`2.6.14-2ubuntu1`	vulnerable
Ubuntu	openvpn	26.04	`2.6.15-1ubuntu1`	vulnerable
Ubuntu	openvpn	26.04	`2.7.0~rc5-1ubuntu5`	vulnerable
Ubuntu	openvpn	26.04	`2.7.0~rc6-1ubuntu1`	vulnerable
Ubuntu	openvpn	26.04	`2.7.0-1ubuntu1`	vulnerable
Ubuntu	openvpn	26.04	`2.7.0-1ubuntu1.1`	vulnerable
Ubuntu	openvpn	26.04	`2.7.0-1ubuntu1.2`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	openvpn	source	sid	`2.7.5-1`	not yet assigned	Not reported	Not reported
Debian	openvpn	source	forky	`2.7.5-1`	not yet assigned	Not reported	Not reported
Debian	openvpn	source	trixie	`2.6.14-1+deb13u3`	not yet assigned	Not reported	Not reported
Debian	openvpn	source	bookworm	`2.6.14-0+deb12u2`	not yet assigned	Not reported	Not reported
Cpe	openvpn	cpe	Not reported	`2.6.21`	Not reported	Not reported	Not reported
Cpe	openvpn	cpe	Not reported	`2.7.5`	Not reported	Not reported	Not reported
Cpe	openvpn	cpe	Not reported	`2.6.14-0+deb12u2`	Not reported	Not reported	Not reported
Cpe	openvpn	cpe	Not reported	`2.6.19-0ubuntu0.24.04.3`	Not reported	Not reported	Not reported
Alpine	openvpn	apk	3.24	`2.7.5-r0`	Not reported	ALPINE-CVE-2026-13122	Not reported
Opensuse	openvpn	rpm	tumbleweed	`2.7.5-1.1`	Not reported	OPENSUSE-SU-2026:11497-1	Not reported
Opensuse	openvpn	rpm	leap 16.0	`2.6.10-160000.4.1`	Not reported	OPENSUSE-SU-2026:21488-1	Not reported
Suse	openvpn	rpm	linux enterprise module for basesystem 15 sp7	`2.6.10-150600.3.23.1`	Not reported	SUSE-SU-2026:3407-1	Not reported
Suse	openvpn-dco	rpm	linux enterprise module for basesystem 15 sp7	`2.6.10-150600.3.23.1`	Not reported	SUSE-SU-2026:3407-1	Not reported
Suse	openvpn	rpm	linux enterprise server 15 sp6-ltss	`2.6.10-150600.3.23.1`	Not reported	SUSE-SU-2026:3407-1	Not reported
Suse	openvpn-dco	rpm	linux enterprise server 15 sp6-ltss	`2.6.10-150600.3.23.1`	Not reported	SUSE-SU-2026:3407-1	Not reported
Suse	openvpn	rpm	linux enterprise server for sap applications 15 sp6	`2.6.10-150600.3.23.1`	Not reported	SUSE-SU-2026:3407-1	Not reported
Suse	openvpn-dco	rpm	linux enterprise server for sap applications 15 sp6	`2.6.10-150600.3.23.1`	Not reported	SUSE-SU-2026:3407-1	Not reported
Ubuntu	openvpn	deb	24.04	`2.6.19-0ubuntu0.24.04.3`	Not reported	UBUNTU-CVE-2026-13122	Not reported
Ubuntu	openvpn	deb	26.04	`2.7.0-1ubuntu1.2`	Not reported	UBUNTU-CVE-2026-13122	Not reported

OpenFactory catalog packages

[openSUSE Tumbleweed]

[openvpn-auth-pam-plugin]Unknown
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.7.5-1.1
  Version impact unknown
  nvd · openvpn · opensuse · tumbleweed
[openvpn-devel]Unknown
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.7.5-1.1
  Version impact unknown
  nvd · openvpn · opensuse · tumbleweed
[openvpn-down-root-plugin]Unknown
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 2.7.5-1.1
  Version impact unknown
  nvd · openvpn · opensuse · tumbleweed
[openvpn]Fixed
Source package: [openvpn]
Details (1)
- 2.7.5-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 2.7.5-1.1
  nvd · openvpn · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[openvpn]Fixed
Details (4)
- 2.6.14-0+deb12u2 · amd64 · bookworm
  Fixed · Fixed: 2.6.14-0+deb12u2
  nvd · openvpn · debian · bookworm; nvd · openvpn · debian · 12
- 2.6.14-0+deb12u2 · arm64 · bookworm
  Fixed · Fixed: 2.6.14-0+deb12u2
  nvd · openvpn · debian · bookworm; nvd · openvpn · debian · 12
- 2.6.14-0+deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 2.6.14-0+deb12u2
  nvd · openvpn · debian · bookworm; nvd · openvpn · debian · 12
- 2.6.14-0+deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 2.6.14-0+deb12u2
  nvd · openvpn · debian · bookworm; nvd · openvpn · debian · 12

[Debian 13 (Trixie)]

[openvpn]Fixed
Details (6)
- 2.6.14-1+deb13u3 · amd64 · trixie
  Fixed · Fixed: 2.6.14-1+deb13u3
  nvd · openvpn · debian · 13
- 2.6.14-1+deb13u3 · arm64 · trixie
  Fixed · Fixed: 2.6.14-1+deb13u3
  nvd · openvpn · debian · 13
- 2.7.5-1~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 2.6.14-1+deb13u3
  nvd · openvpn · debian · 13
- 2.7.5-1~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 2.6.14-1+deb13u3
  nvd · openvpn · debian · 13
- 2.6.14-1+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 2.6.14-1+deb13u3
  nvd · openvpn · debian · 13
- 2.6.14-1+deb13u3 · arm64 · trixie-security
  Fixed · Fixed: 2.6.14-1+deb13u3
  nvd · openvpn · debian · 13

Observed: Oct 27, 2026, 7:13:12 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]