{"cve":"CVE-2026-76909","nvd":{"published":"2026-09-22T21:17:31.880","modified":"2026-09-23T18:12:04.247","status":"Awaiting Analysis","description":"Unleash is an open-source feature management platform. Prior to 8.0.3, the change-request approval email template at src/mailtemplates/requested-cr-approval/requested-cr-approval.html.mustache renders the user-controlled changeRequestTitle, requesterName, and requesterEmail values without HTML escaping, and sendRequestedCRApprovalEmail passes those values to Mustache rendering. A project member who can create a change request when approval emails are enabled can inject HTML into an approver's notification, allowing forged links, tracking content, or visually altered email content. This issue is fixed in version 8.0.3.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":2.1},"cvss_v3":null,"cwes":["CWE-79"],"references":["https://github.com/Unleash/unleash/commit/7c89cedcbbb5aa826951373569930e0a3c4358db","https://github.com/Unleash/unleash/releases/tag/v8.0.3","https://github.com/Unleash/unleash/security/advisories/GHSA-7hvx-28gp-mf6j"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:02.509636177+00:00"},"epss":{"cve":"CVE-2026-76909","score":0.00467,"percentile":0.4049,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7hvx-28gp-mf6j","url":"https://osv.dev/vulnerability/GHSA-7hvx-28gp-mf6j","summary":"Unleash: CR-approval email renders user-controlled raw HTML","modified":"2026-09-22T21:00:07.994508798Z","packages":[{"ecosystem":"npm","name":"unleash-server","purl":"pkg:npm/unleash-server","ranges":["<8.0.3"],"fixed":["8.0.3"]}]}],"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."]}