{"id":"CVE-2019-12995","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-12995","generatedAt":"2026-10-29T00:37:31.105Z","title":"Istio before 1.2.2 mishandles certain access tokens, leading to \"Epoch 0 terminated with an error\" in Envoy.","description":"Istio before 1.2.2 mishandles certain access tokens, leading to \"Epoch 0 terminated with an error\" in Envoy. This is related to a jwt_authenticator.cc segmentation fault.","published":"2019-06-28T10:15:11.000Z","lastModified":"2026-06-17T02:15:53.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["istio/istio"],"epss":{"score":0.02193,"percentile":0.82358,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/istio/istio.io/pull/4555","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/istio/istio/issues/15084","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://istio.io/about/notes/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/istio/istio.io/pull/4555","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/istio/istio/issues/15084","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://istio.io/about/notes/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-12995","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."}