Vulnerability · Published Feb 11, 2026 · Assigned by GitHub_M
CVE-2026-26014Pion DTLS uses random nonce generation with AES GCM ciphers risks leaking the authentication key
Medium 5.9
In plain English
A medium-severity information exposure in dtls from pion. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Pion DTLS is a Go implementation of Datagram Transport Layer Security. Pion DTLS versions v1.0.0 through v3.0.10 and 3.1.0 use random nonce generation with AES GCM ciphers, which makes it easier for remote attackers to obtain the authentication key and spoof data by leveraging the reuse of a nonce in a session and a "forbidden attack". Upgrade to v3.0.11, v3.1.1, or later.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | golang-github-pion-dtls-v3 | 3.1.2-1 | DEBIAN-CVE-2026-26014 |
| Debian:12 | golang-github-pion-dtls.v2 | no fix listed | DEBIAN-CVE-2026-26014 |
| Debian:13 | golang-github-pion-dtls.v2 | no fix listed | DEBIAN-CVE-2026-26014 |
| Debian:14 | golang-github-pion-dtls.v2 | no fix listed | DEBIAN-CVE-2026-26014 |
| Go | github.com/pion/dtls | no fix listed | GO-2026-4479 |
| Go | github.com/pion/dtls | no fix listed | GHSA-9f3f-wv7r-qc8r |
| Go | github.com/pion/dtls/v2 | no fix listed | GHSA-9f3f-wv7r-qc8r |
| Go | github.com/pion/dtls/v2 | no fix listed | GO-2026-4479 |
| Go | github.com/pion/dtls/v3 | 3.1.1 | GHSA-9f3f-wv7r-qc8r |
| Go | github.com/pion/dtls/v3 | 3.0.11 | GHSA-9f3f-wv7r-qc8r |
| Go | github.com/pion/dtls/v3 | 3.0.11, 3.1.1 | GO-2026-4479 |
| Ubuntu:26.04:LTS | golang-github-pion-dtls-v3 | no fix listed | UBUNTU-CVE-2026-26014 |
| Ubuntu:26.10 | golang-github-pion-dtls-v3 | no fix listed | UBUNTU-CVE-2026-26014 |
| Ubuntu:24.04:LTS | golang-github-pion-dtls.v2 | no fix listed | UBUNTU-CVE-2026-26014 |
| Ubuntu:25.10 | golang-github-pion-dtls.v2 | no fix listed | UBUNTU-CVE-2026-26014 |
| Ubuntu:26.04:LTS | golang-github-pion-dtls.v2 | no fix listed | UBUNTU-CVE-2026-26014 |
| Ubuntu:26.10 | golang-github-pion-dtls.v2 | no fix listed | UBUNTU-CVE-2026-26014 |
Affected products (as reported)
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/pion/dtls/security/advisories/GHSA-9f3f-wv7r-qc8r x_refsource_CONFIRM
- https://github.com/pion/dtls/pull/796 x_refsource_MISC
- https://github.com/pion/dtls/commit/61762dee8217991882c5eb79856b9e7a73ee349f x_refsource_MISC
- https://github.com/pion/dtls/commit/90e241cfec2985715efdd3d005972847462a67d6 x_refsource_MISC
- https://github.com/pion/dtls/releases/tag/v3.0.11 x_refsource_MISC
- https://github.com/pion/dtls/releases/tag/v3.1.1 x_refsource_MISC