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Medium severity5.9OSV Advisory· Published Jan 22, 2026· Updated Jun 17, 2026

CVE-2026-23991

CVE-2026-23991

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/theupdateframework/go-tuf/v2Go
< 2.3.12.3.1

Affected products

236

Patches

Vulnerability mechanics

References

5

News mentions

0

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