CVE-2026-54908: Pion DTLS: Denial of service via panic while parsing a crafted ECDHE_PSK ServerKeyExchange message

Severity: medium (CVSS 6.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-01 · updated 2026-10-25
Weakness: CWE-125

Description

Pion DTLS is a Go implementation of Datagram Transport Layer Security. Versions prior to 3.1.4 are vulnerable to Remote Denial of Service via panic while parsing a crafted ECDHE_PSK ServerKeyExchange message. This issue has been fixed in version 3.1.4.

Affected products

pion dtls: before 3.1.4

References

https://github.com/pion/dtls/pull/839
https://github.com/pion/dtls/security/advisories/GHSA-wg4g-wm44-ch5j

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