{"id":"CVE-2023-3635","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-3635","generatedAt":"2026-10-28T04:11:25.019Z","title":"This may lead to denial of service of the Okio client when handling a crafted GZIP archive, by using the GzipSource class.","description":"GzipSource does not handle an exception that might be raised when parsing a malformed gzip buffer. This may lead to denial of service of the Okio client when handling a crafted GZIP archive, by using the GzipSource class.\n\n","published":"2023-07-12T19:15:09.000Z","lastModified":"2026-06-17T06:14:31.000Z","status":"Modified","sourceIdentifier":"reefs@jfrog.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-195","CWE-681"],"affected":["squareup/okio"],"epss":{"score":0.01254,"percentile":0.69333,"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 (1.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/square/okio/commit/81bce1a30af244550b0324597720e4799281da7b","tags":["Patch"],"source":"reefs@jfrog.com"},{"url":"https://research.jfrog.com/vulnerabilities/okio-gzip-source-unhandled-exception-dos-xray-523195/","tags":["Exploit","Patch","Third Party Advisory"],"source":"reefs@jfrog.com"},{"url":"https://github.com/square/okio/commit/81bce1a30af244550b0324597720e4799281da7b","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://research.jfrog.com/vulnerabilities/okio-gzip-source-unhandled-exception-dos-xray-523195/","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-3635","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."}