CVE-2026-54909
Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
pion/stun is a Go implementation of STUN. Prior to 3.1.3, XORMappedAddress.GetFromAs can panic while parsing a malformed short XOR-MAPPED-ADDRESS attribute in STUN or ICE Binding-response parsing paths, allowing remote denial of service. This issue is fixed in version 3.1.3.
Timeline
ID reserved
By GitHub_M
- 45 days later
· 45 days later
Published
- 3 days later
· 3 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Awaiting Analysis | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 0.64% · top 49% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/pion/stunGHSA-34rh-wp3j-6cxc (opens in a new tab)
- Gogithub.com/pion/stun/v2GHSA-34rh-wp3j-6cxc (opens in a new tab)
- Gogithub.com/pion/stun/v3GHSA-34rh-wp3j-6cxc (opens in a new tab)
References (4)
- https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc (opens in a new tab)x_refsource_CONFIRM
- https://github.com/pion/stun/pull/278 (opens in a new tab)x_refsource_MISC
- https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423 (opens in a new tab)x_refsource_MISC
- https://github.com/pion/stun/releases/tag/v3.1.3 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-34rh-wp3j-6cxc (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-54909)Record last updated .