go-tuf affected by client DoS via malformed server response
# Security Disclosure: Client DoS via malformed server response ## Summary 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 DoS. 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. ## Impact Client crashes upon receiving and parsing malformed TUF metadata. This can cause long running services to enter an restart/crash loop. ## Workarounds None currently. ## Affected code The `metadata.checkType` function did not properly type assert the (untrusted) input causing it to panic on malformed data.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-23991US | high7.5 | — | ||
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… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/theupdateframework/go-tufPACKAGE
- https://github.com/theupdateframework/go-tuf/commit/73345ab6b0eb7e59d525dac17a428f043074cef6WEB
- https://github.com/theupdateframework/go-tuf/releases/tag/v2.3.1WEB
- https://github.com/theupdateframework/go-tuf/security/advisories/GHSA-846p-jg2w-w324WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-23991ADVISORY
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