{"affected":[{"product":"Firefox extension","source":"CNA: certcc","vendor":"Private Internet Access","versions":[{"lessThanOrEqual":"4.0.5","status":"affected","version":"3.2.5","versionType":"custom"}]}],"cveId":"CVE-2026-120627","cwes":["CWE-287"],"description":"The Private Internet Access Extension for Firefox contains an unguarded onAuthRequired authentication handler, leading to leakage of PIA proxy credentials when a user visits any malicious website that issues a Basic auth challenge. This issue was fixed in version 3.2.5, but reintroduced in later versions.","epss":{"date":"2026-11-10","percentile":0.22279,"score":0.00295},"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},{"score":7.5,"severity":"high","source":"NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1794322140434,"publishedAt":1793640754968,"references":[{"source":"CNA: certcc","tags":[],"url":"https://addons.mozilla.org/en-US/firefox/addon/private-internet-access-ext/"},{"source":"CNA: certcc","tags":[],"url":"https://github.com/Rexyysilent/PI-ay-ay-disclosure"},{"source":"cret@cert.org","tags":[],"url":"https://addons.mozilla.org/en-US/firefox/addon/private-internet-access-ext/"},{"source":"cret@cert.org","tags":[],"url":"https://github.com/Rexyysilent/PI-ay-ay-disclosure"}],"remediation":[],"revision":"875b001a12e0b3c616dd77e9df6cb4443e97c2fcaa9ccea82f448107f991992a","sources":[{"modifiedAt":1794322140434,"name":"CNA: certcc","retrievedAt":1794323343156,"url":"https://www.cve.org/CVERecord?id=CVE-2026-120627"},{"modifiedAt":1793989079433,"name":"NVD","retrievedAt":1794010872815,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120627"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794323377337,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-120627"}],"ssvc":{"assessedAt":1793987348710,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"CVE-2026-120627","updatedAt":1794323377337}