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Description

go-tuf is a Go implementation of The Update Framework (TUF). Starting in version 2.0.0 and prior to version 2.3.1, if the TUF repository (or any of its mirrors) returns invalid TUF metadata JSON (valid JSON but not well formed TUF metadata), the client will panic during parsing, causing a denial of service. The panic happens before any signature is validated. This means that a compromised repository/mirror/cache can DoS clients without having access to any signing key. Version 2.3.1 fixes the issue. No known workarounds are available.

PUBLISHED Reserved 2026-01-19 | Published 2026-01-22 | Updated 2026-01-22 | Assigner GitHub_M




MEDIUM: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-617: Reachable Assertion

CWE-754: Improper Check for Unusual or Exceptional Conditions

Product status

>= 2.0.0, < 2.3.1
affected

References

github.com/...go-tuf/security/advisories/GHSA-846p-jg2w-w324

github.com/...ommit/73345ab6b0eb7e59d525dac17a428f043074cef6

github.com/theupdateframework/go-tuf/releases/tag/v2.3.1

cve.org (CVE-2026-23991)

nvd.nist.gov (CVE-2026-23991)

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