Advisory record · GHSA-pg59-5vwg-4jxq

SIPGO: DoS via unvalidated Content-Length in the stream parser

CVSS 7.5 HighEPSS 0.0061 · 49th percentile

Published by the GitHub Advisory Database at 22 Sept 2026, 19:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/emiago/sipgoGo<1.4.11.4.1
Identifiers
GHSA-pg59-5vwg-4jxq · CVE-2026-58268 · GO-2026-6550
Weakness (CWE)
CWE-789
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.

SIPGO versions before 1.4.1 are vulnerable to a denial-of-service attack through the stream parser, which allocates the SIP body buffer from the Content-Length header before checking its size. An unauthenticated remote attacker who can send SIP messages over a stream transport (TCP, TLS, WS or WSS) can cause the service to run out of memory. Upgrade to sipgo 1.4.1, which fixes the issue.

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 8 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.