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CVE-2026-113729

7.5 high SSVC exploitation: none Published
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 4

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-27 11:07
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 16:47
  3. StatusReceived → PublishedNVD modified 2026-10-20 21:20
  4. First seenCVSS 7.5NVD modified 2026-10-20 22:19

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3