What’s Vulnerable › Vulnerabilities

CVE-2021-41150: Improper sanitization of delegated role names in tough

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-19 · updated 2026-06-17
• Weakness: CWE-22

Description

Tough provides a set of Rust libraries and tools for using and generating the update framework (TUF) repositories. The tough library, prior to 0.12.0, does not properly sanitize delegated role names when caching a repository, or when loading a repository from the filesystem. When the repository is cached or loaded, files ending with the .json extension could be overwritten with role metadata anywhere on the system. A fix is available in version 0.12.0. No workarounds to this issue are known.

Affected products

• AWS tough: before 0.12.0 — fixed in 0.12.0

How to fix

Upgrade to a fixed version: AWS tough 0.12.0. Check the vendor advisory for mitigations.

References

• https://github.com/awslabs/tough/commit/1809b9bd1106d78a51fbea3071aa97a3530bac9a
• https://github.com/awslabs/tough/security/advisories/GHSA-r56q-vv3c-6g9c
• https://github.com/theupdateframework/python-tuf/security/advisories/GHSA-wjw6-2cqr-j4qr
• https://github.com/awslabs/tough/commit/1809b9bd1106d78a51fbea3071aa97a3530bac9a
• https://github.com/awslabs/tough/security/advisories/GHSA-r56q-vv3c-6g9c
• https://github.com/theupdateframework/python-tuf/security/advisories/GHSA-wjw6-2cqr-j4qr

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