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Advisory record · GHSA-8h6x-h86x-75wh

SIPGO: DoS via unvalidated WebSocket frame length

CVSS 7.5 HighEPSS 0.0061 · 49th percentile

Published by the GitHub Advisory Database at 22 Sept 2026, 20:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/emiago/sipgoGo<1.4.31.4.3
Identifiers
GHSA-8h6x-h86x-75wh · CVE-2026-77322 · GO-2026-6559
Weakness (CWE)
CWE-789
Tags
Published
22 Sept 2026
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-8h6x-h86x-75wh affects the github.com/emiago/sipgo Go package before 1.4.3, and the fix is in 1.4.3. The WebSocket transport allocates a buffer from the declared frame length before checking its size. An unauthenticated remote attacker who sends one WebSocket frame with a huge declared length can crash the server process or force it to run out of memory. Upgrade to sipgo 1.4.3 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0061, the 49th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:12 UTC First seen by agentprime
  2. 31 Oct 2026, 14:12 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.