CVE-2026-54908: Pion DTLS denial of service via panic in ServerKeyExchange parsing

CVE-2026-54908 · Severity: medium · CVSS 4 · Published 2026-07-01

Pion DTLS, a library used for secure real-time communications like WebRTC, is vulnerable to a denial of service attack. An attacker can send a specially crafted network message that causes the application to crash (panic). This could lead to service outages for users relying on the affected communication software.

Vendors: Go.

Quick answers

Is CVE-2026-54908 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-54908 being exploited in the wild.
How severe is CVE-2026-54908?
Medium severity, with a CVSS score of 4, published 1 July 2026.
Which products and versions are affected?
github.com/pion/dtls/v3 (Go) <= 3.1.2, SEMVER:introduced=0,fixed=3.1.4; Pion Dtls < 3.1.4, <= 3.1.2.
Is there a fix for CVE-2026-54908?
Yes. github.com/pion/dtls/v3 (Go): upgrade to 3.1.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-54908 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-54908?
Check whether you run github.com/pion/dtls/v3 (Go) or Pion Dtls at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/pion/dtls/v3 (Go): upgrade to 3.1.4 or later
    go get github.com/pion/dtls/v3@v3.1.4

Technical details

A vulnerability in Pion DTLS (specifically the Go implementation) allows a remote attacker to trigger a panic, leading to a denial of service. The issue is classified as an out-of-bounds read (CWE-125) that occurs during the parsing of a crafted ECDHE_PSK ServerKeyExchange message. An attacker can exploit this by sending a malformed handshake message over the network without requiring any prior authentication. The vulnerability is addressed in version 3.1.4, which includes a fix for the improper parsing logic.

Affected products

  • pion dtls <= 3.1.2

Identifiers

  • CVE-2026-54908
  • GHSA-wg4g-wm44-ch5j
  • GO-2026-6165

Timeline

  • 2026-06-09: disclosed
  • 2026-07-01: advisory: NVD publication
  • 2026-07-31: patched: GitHub Advisory published/reviewed

References

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