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CVE-2026-6966

MEDIUM

5.3

Description

Improper verification of cryptographic signature uniqueness in delegated role validation in awslabs/tough before tough-v0.22.0 allows remote authenticated users to bypass the TUF signature threshold requirement by duplicating a valid signature, causing the client to accept forged delegated role metadata. We recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurNONE

Publie4/24/2026

Derniere modification4/24/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-347

References

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

https://crates.io/crates/tough/0.22.0(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://crates.io/crates/tuftool/0.15.0(ff89ba41-3aa1-4d27-914a-91399e9639e5)

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

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

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

Correlations IOC

Aucune correlation enregistree

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