{"id":"CVE-2018-18628","aliases":["EUVD-2018-0537","GHSA-7fm6-2qw4-g3x3"],"status":"published","title":"Deserialization of Untrusted Data in Pippo","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05482,"percentile":0.92821,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2018-10-23T20:00:00Z","modified":"2026-10-20T10:50:04Z","fixes":[{"ecosystem":"Maven","package":"ro.pippo:pippo-core","fixed_in":["1.12.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"ro.pippo:pippo-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.0"}]}]},{"source":"osv","ecosystem":"Maven","package":"ro.pippo:pippo-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.0"}]}],"versions":["0.10.0","0.4.0","0.4.1","0.4.2","0.5.0","0.6.0","0.6.1","0.7.0","0.8.0","0.9.0","0.9.1","1.0.0","1.1.0","1.10.0","1.11.0","1.2.0","1.3.0","1.4.0","1.5.0","1.6.0","1.7.0","1.8.0","1.9.0"]}],"products":[{"vendor":"pippo","product":"pippo"}],"references":[{"url":"https://github.com/pippo-java/pippo/issues/458","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-18628","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7fm6-2qw4-g3x3","tags":["advisory"]},{"url":"https://github.com/pippo-java/pippo/commit/a82347d9d3358e98c89b48579d4285d807a57cc0","tags":["web"]},{"url":"https://github.com/pippo-java/pippo/commit/c6b26551a82d2dd32097fcb17c13c3b830916296","tags":["web"]},{"url":"https://github.com/pippo-java/pippo","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-18628","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","status":"published","published":"2018-10-23T20:00:00Z","modified":"2024-09-16T20:48:19.108Z","updated_at":"2026-11-02T14:35:11.426178Z"}],"euvd":[{"id":"EUVD-2018-0537","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","status":"published","published":"2018-10-23T20:00:00Z","modified":"2024-09-16T20:48:19Z","updated_at":"2026-11-03T00:55:10.446271Z"}],"ghsa":[{"id":"GHSA-7fm6-2qw4-g3x3","title":"Deserialization of Untrusted Data in Pippo","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","status":"published","published":"2018-10-24T19:46:20Z","modified":"2024-03-04T22:24:36Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:37:39.730152Z"}],"nvd":[{"id":"CVE-2018-18628","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","status":"published","published":"2018-10-23T20:29:00.797Z","modified":"2026-06-17T01:47:36.193Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:04:46.409324Z"}],"osv":[{"id":"CVE-2018-18628","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","status":"published","published":"2018-10-23T20:29:00.797Z","modified":"2026-10-20T10:50:04.697144985Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:08.834469Z"},{"id":"GHSA-7fm6-2qw4-g3x3","title":"Deserialization of Untrusted Data in Pippo","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","status":"published","published":"2018-10-24T19:46:20Z","modified":"2024-03-04T22:31:00.772605Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:41.002603Z"}]}}