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Advisory record · GHSA-5588-rp99-5fjh

Moov signedxml: Unauthenticated denial of service in exclusive XML canonicalization

CVSS 7.5 HighEPSS 0.0046 · 39th percentile

Published by the GitHub Advisory Database at 21 Oct 2026, 16:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/moov-io/signedxmlGo<1.4.11.4.1
Identifiers
GHSA-5588-rp99-5fjh · CVE-2026-113729 · GO-2026-6826
Weakness (CWE)
CWE-400 · CWE-407 · CWE-770
Tags
Published
21 Oct 2026
Updated
5 Nov 2026

Machine-written summary

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

github.com/moov-io/signedxml versions before 1.4.1 are vulnerable to denial of service during exclusive XML canonicalization. An unauthenticated attacker can send a small XML document with nested elements that declare many unused namespace prefixes, causing excessive memory use that can crash the process. Upgrade to 1.4.1.

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 0.0046, the 39th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:11 UTC First seen by agentprime
  2. 31 Oct 2026, 14:11 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.