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Tool Directory

CVE-2025-2887

MediumPublished

Failure to detect delegated target rollback in tough

Published: Mar 27, 2025
Updated: Oct 14, 2025
Assigning CNA: AMZN
Evidence observed: Aug 6, 2026

Primary CVSS

5.7/ 10Medium

nvd · CVSS 4.0

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 25.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

During a target rollback, the client fails to detect the rollback for delegated targets. 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.

Sources

AWS-Tough-Library-Multiple-CVEsResearch
Issue with tough, versions prior to 0.20.0 (Multiple CVEs)

Responsible use

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