High 7.5Published Oct 20, 2026

CVE-2026-113729Moov signedxml: Unauthenticated denial of service in exclusive XML canonicalization

Updated under an hour ago (2026-10-21 05:00 UTC)

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Every CVE for moov-io signedxml

Exploited in the last 30 days

Moov signedxml is a pure Go library for processing signed XML documents. Prior to 1.4.1, ExclusiveCanonicalization in exclusivecanonicalization.go copies the complete accumulated namespace map at every nested element before reference digest or signature checks. Attacker-controlled XML containing deeply nested elements with many unused namespace declarations causes quadratic allocation growth with depth and linear growth with prefixes per level, allowing a comparatively small document to consume multiple gigabytes of memory and terminate the process. The condition is reachable through ValidateReferences without a valid signature, matching certificate, or prior authentication, and it does not bypass signature verification. This issue is fixed in version 1.4.1.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400, CWE-407, CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Received
Record last updated: Oct 20, 2026
First seen by InfoSec Signals: Oct 20, 2026

Affected products

Affected products

moov-io signedxml moov_io:signedxml (from the name)	before 1.4.1	CNA record

References

https://github.com/moov-io/signedxml/security/advisories/GHSA-5588-rp99-5fjhx-refsource-confirm
https://github.com/moov-io/signedxml/commit/da2cd6126c4c53b7e59a367d287786e6f6a2d0d3x-refsource-misc
https://github.com/moov-io/signedxml/releases/tag/v1.4.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.