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

> CVE-2025-2888: Improper timestamp caching during snapshot rollback in tough. CVSS 4.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-2888
Last updated: 2026-06-17T09:07:48Z

- Published: 2025-03-27 22:23 UTC · Updated: 2026-06-17 09:07 UTC · Assigner: AMZN
- CVSS: 4.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N
- EPSS: 0.33%, 26th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-1025

## 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 vendors and products

- AWS: tough

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-2888)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-2888)
- [https://aws.amazon.com/security/security-bulletins/AWS-2025-007/](https://aws.amazon.com/security/security-bulletins/AWS-2025-007/)
- [https://github.com/awslabs/tough/releases/tag/tough-v0.20.0](https://github.com/awslabs/tough/releases/tag/tough-v0.20.0)
- [https://github.com/awslabs/tough/security/advisories/GHSA-76g3-38jv-wxh4](https://github.com/awslabs/tough/security/advisories/GHSA-76g3-38jv-wxh4)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-2888 · Markdown: https://rewindex.com/cve/CVE-2025-2888.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-2888 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:14:55.290Z