CVE-2025-2886

Terminating targets role delegations are not respected in tough

State: Published
Severity: 5.7 Medium
Published: Mar 27, 2025
Updated: Oct 14, 2025
Reserved: Mar 27, 2025

Description

Missing validation of terminating delegation causes the client to continue searching the defined delegation list, even after searching a terminating delegation. This could cause the client to fetch a target from an incorrect source, altering the target contents. Users should upgrade to tough version 0.20.0 or later and ensure any forked or derivative code is patched to incorporate the new fixes.

Scores

CVSS	Score	Vector	Source
4.0	5.7 Medium	CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N	AMZN

Weaknesses

CWE-670 Always-Incorrect Control Flow Implementation

Affected Products

Product	Versions
toughAWS	0.1.0 to before 0.20.0Affected

References

https://github.com/awslabs/tough/security/advisories/GHSA-v4wr-j3w6-mxqcvendor-advisory
https://aws.amazon.com/security/security-bulletins/AWS-2025-007/vendor-advisory
https://github.com/awslabs/tough/releases/tag/tough-v0.20.0patch

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