GHSA-846p-jg2w-w324

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.

Database specific

{
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-617",
        "CWE-754"
    ],
    "severity": "MODERATE",
    "github_reviewed_at": "2026-01-21T16:19:28Z",
    "nvd_published_at": "2026-01-22T03:15:47Z"
}

References

Affected packages

Go / github.com/theupdateframework/go-tuf/v2

Package

Name: github.com/theupdateframework/go-tuf/v2; View open source insights on deps.dev
Purl: pkg:golang/github.com/theupdateframework/go-tuf/v2

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.3.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-846p-jg2w-w324/GHSA-846p-jg2w-w324.json"