{"cve":"CVE-2021-38562","nvd":{"published":"2021-10-18T09:15:08.767","modified":"2026-06-17T04:02:21.993","status":"Modified","description":"Best Practical Request Tracker (RT) 4.2 before 4.2.17, 4.4 before 4.4.5, and 5.0 before 5.0.2 allows sensitive information disclosure via a timing attack against lib/RT/REST2/Middleware/Auth.pm.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-203"],"references":["https://docs.bestpractical.com/release-notes/rt/index.html","https://github.com/bestpractical/rt/commit/70749bb66cb13dd70bd53340c371038a5f3ca57c","https://lists.debian.org/debian-lts-announce/2022/06/msg00019.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2JK57CEEXLQF7MGBCUX76DZHXML7LUSQ/","https://docs.bestpractical.com/release-notes/rt/index.html"],"products":["bestpractical:request_tracker","debian:debian_linux","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-38562","score":0.01835,"percentile":0.78934,"date":"2026-11-01"},"kev":null,"osv":[],"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."]}