{"affected":[{"defaultStatus":"unaffected","ecosystem":"maven","packageName":"org.apache.mina:mina-core","product":"Apache MINA","source":"CNA: apache","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"3.0.0-M2","status":"affected","version":"3.0.0","versionType":"maven"}]}],"cveId":"CVE-2026-118636","cwes":["CWE-502"],"description":"**UNSUPPORTED WHEN ASSIGNED** \n\nJavaNativeMessageDecoder in the MINA 3.0 codec module calls ObjectInputStream.readObject() on frame bytes with no class filter, so an\napplication that puts it in front of an untrusted peer is open to gadget-chain RCE.\n\nAs the 3.0.0 branch is inactive, we do not plan to release a version that fixes this issue. \n\nUsers are recommended to use the latest Apache MINA 2.2.X branch.","epss":{"date":"2026-11-05","percentile":0.47584,"score":0.00575},"exploits":[],"kev":null,"metrics":[{"score":9.8,"severity":"critical","source":"CNA: apache","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":9.8,"severity":"critical","source":"NVD: security@apache.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793972797116,"publishedAt":1793477831191,"references":[{"source":"CNA: apache","tags":["third-party-advisory"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-118636"},{"source":"CNA: apache","tags":["vendor-advisory"],"url":"https://lists.apache.org/thread.html/h76nwcrkvsffhsk2kq6cjzc6srtnty7x"},{"source":"ADP: CVE","tags":[],"url":"http://www.openwall.com/lists/oss-security/2026/10/31/3"},{"source":"security@apache.org","tags":[],"url":"https://lists.apache.org/thread.html/h76nwcrkvsffhsk2kq6cjzc6srtnty7x"},{"source":"security@apache.org","tags":[],"url":"https://www.cve.org/CVERecord?id=CVE-2026-118636"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"url":"http://www.openwall.com/lists/oss-security/2026/10/31/3"}],"remediation":[],"revision":"895ed7c3a2a5dac14a6196379dc42fb049e9b1951951dc997cb89307f987b0a5","sources":[{"modifiedAt":1793972797116,"name":"CNA: apache","retrievedAt":1793974227029,"url":"https://www.cve.org/CVERecord?id=CVE-2026-118636"},{"modifiedAt":1793646893030,"name":"NVD","retrievedAt":1793665759988,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118636"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793944801668,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-118636"}],"ssvc":{"assessedAt":1793972759071,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Apache MINA: Unsafe Deserialization (CWE-502) in JavaNativeMessageDecoder","updatedAt":1793974227029}