CVE-2026-6966
medium
CVSS v3
6.5
CVSS v2
—
VIR risk
6.5
Description
awslabs/tough Delegated Roles have a Signature Threshold Bypass
Predictions
Exploit likelihood
75%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://github.com/awslabs/tough/security/advisories/GHSA-8m7c-8m39-rv4x
Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0
Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://github.com/awslabs/tough/releases/tag/tough-v0.22.0
Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://aws.amazon.com/security/security-bulletins/2026-019-aws/
References
- https://aws.amazon.com/security/security-bulletins/2026-019-aws/
- https://crates.io/crates/tough/0.22.0
- https://crates.io/crates/tuftool/0.15.0
- https://github.com/awslabs/tough/releases/tag/tough-v0.22.0
- https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0
- https://github.com/awslabs/tough/security/advisories/GHSA-8m7c-8m39-rv4x
- https://nvd.nist.gov/vuln/detail/CVE-2026-6966
- https://aws.amazon.com/security/security-bulletins/2026-019-aws
- https://github.com/awslabs/tough
- https://github.com/advisories/GHSA-8m7c-8m39-rv4x
CWEs
CWE-347
Verify integrity in audit chain (admin only). AS-IS.