CVE-2026-6966

medium
Published 2026-04-24 · Modified 2026-05-05
CVSS v3
6.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
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 Authored 2026-05-27

Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://github.com/awslabs/tough/security/advisories/GHSA-8m7c-8m39-rv4x

vendor Authored 2026-05-27

Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://github.com/awslabs/tough/releases/tag/tuftool-v0.15.0

vendor Authored 2026-05-27

Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://github.com/awslabs/tough/releases/tag/tough-v0.22.0

vendor Authored 2026-05-27

Vendor advisory: ff89ba41-3aa1-4d27-914a-91399e9639e5 — https://aws.amazon.com/security/security-bulletins/2026-019-aws/

Package impact

EcosystemPackageVulnerableFixed
rust crates.iotough<0.22.00.22.0
rust crates.iotuftool<0.15.00.15.0
rust RUSTtuftool< 0.15.00.15.0
rust RUSTtough< 0.22.00.22.0

Application impact

VendorProductVersionsFixed
aws amazontough{"endExcluding":"0.22.0"}0.22.0
aws amazontuftool{"endExcluding":"0.15.0"}0.15.0

References

CWEs

CWE-347

Verify integrity in audit chain (admin only). AS-IS.