CVE-2026-54909
MEDIUMPion STUN vulnerable to remote denial of service via panic while parsing a malformed XOR-MAPPED-ADDRESS attribute
Title source: cnaDescription
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.
References (4)
Core 4
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/pion/stun/security/advisories/GHSA-34rh-wp3j-6cxc
X_Refsource_Misc x_refsource_misc
https://github.com/pion/stun/pull/278
X_Refsource_Misc x_refsource_misc
https://github.com/pion/stun/commit/fa9f074a33a8059c76c960b1fbee39f308002423
X_Refsource_Misc x_refsource_misc
https://github.com/pion/stun/releases/tag/v3.1.3
Scores
CVSS v3
5.3
EPSS
0.0037
EPSS Percentile
29.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (4)
pion/stun
0 - 1.23.1Go
pion/stun
0 - 2.0.0Go
pion/stun
0 - 3.1.5Go
pion/stun
< 3.1.3
Published
Jul 31, 2026
Tracked Since
Aug 01, 2026