CVE-2026-54909CWE-20

CVE-2026-54909

Medium · published August 1, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
50.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00644 · 50.3th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-08-01T03:17Z
References (4)
https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423 · [email protected]https://github.com/pion/stun/pull/278 · [email protected]https://github.com/pion/stun/releases/tag/v3.1.3 · [email protected]https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc · [email protected]
EPSS history
Timeline
  • 31 JUL 22:03Z
    Pion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute
    cvelistv5