{"cve":"CVE-2025-2886","nvd":{"published":"2025-03-27T23:15:35.410","modified":"2026-06-17T09:07:47.867","status":"Modified","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.","cvss_v4":{"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","score":5.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N","score":4.5},"cwes":["CWE-670"],"references":["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/security/advisories/GHSA-v4wr-j3w6-mxqc"],"products":["amazon:tough"],"source":"nvd","synced_at":"2026-10-19T22:00:28.034033815+00:00"},"epss":{"cve":"CVE-2025-2886","score":0.00332,"percentile":0.26491,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-v4wr-j3w6-mxqc","url":"https://osv.dev/vulnerability/GHSA-v4wr-j3w6-mxqc","summary":"tough terminating targets role delegations are not respected","modified":"2025-10-14T21:58:53Z","packages":[{"ecosystem":"crates.io","name":"tough","purl":"pkg:cargo/tough","ranges":["<0.20.0"],"fixed":["0.20.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}