Vulnerability · Published Mar 27, 2025 · Assigned by AMZN

CVE-2025-2888Improper timestamp caching during snapshot rollback in tough

Medium 5.7

In plain English

A medium-severity security flaw in tough from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 4.0)5.7Medium

Exploit odds (30 days)0.3%top 73.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

During a snapshot rollback, the client incorrectly caches the timestamp metadata. If the client checks the cache when attempting to perform the next update, the update timestamp validation will fail, preventing the next update until the cache is cleared. 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.

Affected products (as reported)

Vendor	Product	Versions
AWS	tough	0.1.0 – before 0.20.0

Weakness: CWE-1025 · Vector: 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

References

https://github.com/awslabs/tough/security/advisories/GHSA-76g3-38jv-wxh4 vendor-advisory
https://aws.amazon.com/security/security-bulletins/AWS-2025-007/ vendor-advisory
https://github.com/awslabs/tough/releases/tag/tough-v0.20.0 patch