{"id":"CVE-2025-8129","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-8129","generatedAt":"2026-10-28T00:18:26.295Z","title":"A vulnerability, which was classified as problematic, was found in KoaJS Koa up to 3.0.0.","description":"A vulnerability, which was classified as problematic, was found in KoaJS Koa up to 3.0.0. Affected is the function back in the library lib/response.js of the component HTTP Header Handler. The manipulation of the argument Referrer leads to open redirect. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.","published":"2025-07-25T05:15:37.000Z","lastModified":"2026-06-17T10:06:22.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":2,"severity":"LOW","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-601"],"affected":["koajs/koa"],"epss":{"score":0.00285,"percentile":0.2082,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/koajs/koa/issues/1892","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/koajs/koa/issues/1892#issue-3213028583","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory","Vendor Advisory"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.317514","tags":["Permissions Required","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.317514","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.619741","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://github.com/koajs/koa/issues/1892","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-8129","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}