{"id":"CVE-2023-6378","aliases":["CLSA-2025-1762906009","DEBIAN-CVE-2023-6378","EUVD-2023-3046","GHSA-6v67-2wr5-gvf4","GHSA-jhq6-gfmj-v8fx","GHSA-p47f-322f-whfh","GHSA-pr98-23f8-jwxv","GHSA-vmq6-5m68-f53m","OESA-2023-1946","RHLW-2026-055d7bde52d9946f","RHLW-2026-271a386ee9cf984f","RHLW-2026-36bdda9f7ce1c5cb","RHLW-2026-a08954ef69e23d40","ROOT-APP-MAVEN-CVE-2023-6378","UBUNTU-CVE-2023-6378","USN-7616-1","openSUSE-SU-2025:15597-1"],"status":"published","title":"Logback \"receiver\" DOS vulnerability","description":"A serialization vulnerability in logback receiver component part of \nlogback version 1.4.11 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.009,"percentile":0.59944,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2023-11-29T12:02:37Z","modified":"2026-11-02T19:45:09Z","fixes":[{"ecosystem":"Maven","package":"ch.qos.logback:logback-classic","fixed_in":["1.4.12","1.3.12","1.2.13"],"sources":["ghsa","osv"]},{"ecosystem":"Maven","package":"ch.qos.logback:logback-core","fixed_in":["1.4.12","1.3.12","1.2.13"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:13","package":"logback","fixed_in":["1:1.2.11-5"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"logback","fixed_in":["1:1.2.11-5"],"sources":["osv"]},{"ecosystem":"Red Hat 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Notes","web","report"]},{"url":"https://security.netapp.com/advisory/ntap-20241129-0012/","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6378","tags":["advisory"]},{"url":"https://github.com/qos-ch/logback/commit/9c782b45be4abdafb7e17481e24e7354c2acd1eb","tags":["web"]},{"url":"https://github.com/qos-ch/logback/commit/b8eac23a9de9e05fb6d51160b3f46acd91af9731","tags":["web"]},{"url":"https://logback.qos.ch/manual/receivers.html","tags":["web"]},{"url":"https://github.com/qos-ch/logback/issues/745#issuecomment-1836227158","tags":["web"]},{"url":"https://github.com/qos-ch/logback/commit/bb095154be011267b64e37a1d401546e7cc2b7c3","tags":["web"]},{"url":"https://logback.qos.ch/news.html#1.2.13","tags":["web"]},{"url":"https://security.netapp.com/advisory/ntap-20241129-0012","tags":["web"]},{"url":"https://github.com/advisories/GHSA-vmq6-5m68-f53m","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6378.json","tags":["advisory"]},{"url":"https://github.com/qos-ch/logback","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-6378","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1946","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6481","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-12801","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6v67-2wr5-gvf4","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-12798","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-pr98-23f8-jwxv","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-11226","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10532.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10532","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jhq6-gfmj-v8fx","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1225","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9828.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9828","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-p47f-322f-whfh","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-6378","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-6378","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7616-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-42550","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-6378","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-6481","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-11226","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-6378","title":"Logback \"receiver\" DOS vulnerability ","description":"A serialization vulnerability in logback receiver component part of \nlogback version 1.4.11 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.\n\n","status":"published","published":"2023-11-29T12:02:37.496Z","modified":"2024-11-29T12:04:40.421Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:25.469654Z"}],"euvd":[{"id":"EUVD-2023-3046","description":"A serialization vulnerability in logback receiver component part of \nlogback version 1.4.11 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.\n\n","status":"published","published":"2023-11-29T12:02:37Z","modified":"2024-11-29T12:04:40Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:45.257697Z"}],"ghsa":[{"id":"GHSA-vmq6-5m68-f53m","title":"logback serialization vulnerability","description":"A serialization vulnerability in logback receiver component part of logback allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.\n\nThis is only exploitable if logback receiver component is deployed. See https://logback.qos.ch/manual/receivers.html","status":"published","published":"2023-11-29T12:30:16Z","modified":"2024-11-29T12:31:48Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:38:24.542211Z"}],"nvd":[{"id":"CVE-2023-6378","description":"A serialization vulnerability in logback receiver component part of \nlogback version 1.4.11 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.\n\n","status":"published","published":"2023-11-29T12:15:07.543Z","modified":"2026-06-17T06:50:38.65Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:08:49.393375Z"}],"osv":[{"id":"CVE-2023-6378","title":"Logback \"receiver\" DOS vulnerability ","description":"A serialization vulnerability in logback receiver component part of \nlogback version 1.4.11 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.\n\n","status":"published","published":"2023-11-29T12:02:37.496Z","modified":"2026-10-28T02:30:31.779194752Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:36.851042Z"},{"id":"DEBIAN-CVE-2023-6378","description":"A serialization vulnerability in logback receiver component part of  logback version 1.4.11 allows an attacker to mount a Denial-Of-Service  attack by sending poisoned data.","status":"published","published":"2023-11-29T12:15:07.543Z","modified":"2026-10-26T18:02:21.718673817Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:41.533064Z"},{"id":"GHSA-vmq6-5m68-f53m","title":"logback serialization vulnerability","description":"A serialization vulnerability in logback receiver component part of logback allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.\n\nThis is only exploitable if logback receiver component is deployed. See https://logback.qos.ch/manual/receivers.html","status":"published","published":"2023-11-29T12:30:16Z","modified":"2026-09-10T03:50:04.518871254Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:57.348035Z"},{"id":"OESA-2023-1946","title":"logback security update","description":"Logback is intended as a successor to the popular log4j project.\r\n\r\nSecurity Fix(es):\r\n\r\nA serialization vulnerability in logback receiver component part of \nlogback version 1.4.11 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.\r\n\r\n(CVE-2023-6378)\r\n\r\nA serialization vulnerability in logback receiver component part of \nlogback version 1.4.13, 1.3.13 and 1.2.12 allows an attacker to mount a Denial-Of-Service \nattack by sending poisoned data.\r\n\r\n(CVE-2023-6481)","status":"published","published":"2023-12-22T11:06:23Z","modified":"2026-08-18T01:18:06.395815111Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:40.71472Z"},{"id":"RHLW-2026-055d7bde52d9946f","title":"Lightwell Security Advisory: logback-core 1.2.12.rhlw-00005","description":"Red Hat Lightwell has released ch.qos.logback:logback-core 1.2.12.rhlw-00005 with backported fixes for CVE-2023-6378 and CVE-2024-12801.\n\nCVE-2023-6378: Logback \"receiver\" DOS vulnerability \n\nCVE-2024-12801: Server-Side Request Forgery (SSRF) in SaxEventRecorder by QOS.CH logback version 0.1 to 1.3.14 and 1.4.0 to 1.5.12  on the Java platform, allows an attacker to \nforge requests by compromising logback configuration files in XML.\n\n\n\nThe attacks involves the modification of DOCTYPE declaration in  XML configuration files.\n\nThis patched artifact is a drop-in replacement for ch.qos.logback:logback-core 1.2.12 from Maven Central.","status":"published","published":"2026-10-08T00:00:00Z","modified":"2026-10-29T14:30:03.383020042Z","cvss":[{"version":"4.0","score":2.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:D/RE:X/U:Clear","level":"low"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"RHLW-2026-271a386ee9cf984f","title":"Lightwell Security Advisory: logback-classic 1.2.11.rhlw-00001","description":"Red Hat Lightwell has released ch.qos.logback:logback-classic 1.2.11.rhlw-00001 with a backported security fix.\n\nCVE-2023-6378: Logback \"receiver\" DOS vulnerability \n\nThis patched artifact is a drop-in replacement for ch.qos.logback:logback-classic 1.2.11 from Maven Central.","status":"published","published":"2026-10-08T19:45:01Z","modified":"2026-10-27T04:00:05.55275967Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"RHLW-2026-36bdda9f7ce1c5cb","title":"Lightwell Security Advisory: logback-classic 1.2.12.rhlw-00005","description":"Red Hat Lightwell has released ch.qos.logback:logback-classic 1.2.12.rhlw-00005 with backported fixes for CVE-2023-6378 and CVE-2024-12801.\n\nCVE-2023-6378: Logback \"receiver\" DOS vulnerability \n\nCVE-2024-12801: Server-Side Request Forgery (SSRF) in SaxEventRecorder by QOS.CH logback version 0.1 to 1.3.14 and 1.4.0 to 1.5.12  on the Java platform, allows an attacker to \nforge requests by compromising logback configuration files in XML.\n\n\n\nThe attacks involves the modification of DOCTYPE declaration in  XML configuration files.\n\nThis patched artifact is a drop-in replacement for ch.qos.logback:logback-classic 1.2.12 from Maven Central.","status":"published","published":"2026-08-31T15:42:25Z","modified":"2026-10-27T04:13:00.664952381Z","cvss":[{"version":"4.0","score":2.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:D/RE:X/U:Clear","level":"low"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"RHLW-2026-a08954ef69e23d40","title":"Lightwell Security Advisory: logback-core 1.2.11.rhlw-00001","description":"Red Hat Lightwell has released ch.qos.logback:logback-core 1.2.11.rhlw-00001 with backported fixes for CVE-2023-6378, CVE-2024-12798, CVE-2024-12801, CVE-2025-11226, CVE-2026-10532, CVE-2026-1225, and CVE-2026-9828.\n\nCVE-2023-6378: Logback \"receiver\" DOS vulnerability \n\nCVE-2024-12798: ACE vulnerability in JaninoEventEvaluator  by QOS.CH logback-core\n      upto including version 0.1 to 1.3.14 and 1.4.0 to 1.5.12 in Java applications allows\n      attacker to execute arbitrary code by compromising an existing\n      logback configuration file or by injecting an environment variable\n      before program execution.\n\n\n\n\n\nMalicious logback configuration files can allow the attacker to execute \narbitrary code using the JaninoEventEvaluator extension.\n\n\n\nA successful attack requires the user to have write access to a \nconfiguration file. Alternatively, the attacker could inject a malicious \nenvironment variable pointing to a malicious configuration file. In both \ncases, the attack requires existing privilege.\n\nCVE-2024-12801: Server-Side Request Forgery (SSRF) in SaxEventRecorder by QOS.CH logback version 0.1 to 1.3.14 and 1.4.0 to 1.5.12  on the Java platform, allows an attacker to \nforge requests by compromising logback configuration files in XML.\n\n\n\nThe attacks involves the modification of DOCTYPE declaration in  XML configuration files.\n\nCVE-2025-11226: ACE vulnerability in conditional configuration file processing  by QOS.CH logback-core up to and including version 1.5.18 in Java applications, allows an attacker to execute arbitrary code by compromising an existing logback configuration file or by injecting an environment variable before program execution.\n\n\n\nA successful attack requires the presence of Janino library and Spring Framework to be present on the user's class path. In addition, the attacker must  have write access to a \nconfiguration file. Alternatively, the attacker could inject a malicious \nenvironment variable pointing to a malicious configuration file. In both \ncases, the attack requires existing privilege.\n\nCVE-2026-10532: Logback deserialization whitelist bypass for Proxy objects\n\nCVE-2026-1225: ACE vulnerability in configuration file processing  by QOS.CH logback-core up to and including version 1.5.24 in Java applications, allows an attacker to instantiate classes already present on the class path by compromising an existing logback configuration file.\n\n\n\n\nThe instantiation of a potentially malicious Java class requires that said class is present on the user's class-path. In addition, the attacker must  have write access to a \nconfiguration file. However, after successful instantiation, the instance is very likely to be discarded with no further ado.\n\nCVE-2026-9828: Logback deserialization whitelist bypass for java.lang and java.util\n\nThis patched artifact is a drop-in replacement for ch.qos.logback:logback-core 1.2.11 from Maven Central.","status":"published","published":"2026-10-12T16:52:49Z","modified":"2026-10-27T04:13:05.495206116Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Clear","level":"medium"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"ROOT-APP-MAVEN-CVE-2023-6378","title":"CVE-2023-6378 in ch.qos.logback:logback-core - Patched by Root","description":"Root has patched CVE-2023-6378 in the ch.qos.logback:logback-core package for Root:Maven. Multiple fixed versions available.","status":"published","published":"2026-09-29T12:12:09Z","modified":"2026-09-29T13:15:04.769622698Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:27.066589Z"},{"id":"UBUNTU-CVE-2023-6378","description":"A serialization vulnerability in logback receiver component part of logback version 1.4.11 allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.","status":"published","published":"2023-11-29T12:15:00Z","modified":"2026-02-04T02:15:05.266018Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:41.555387Z"},{"id":"CLSA-2025-1762906009","title":"TuxCare security update for ch.qos.logback (4 CVEs)","description":"TuxCare rebuilt 2 ch.qos.logback packages to address 4 CVEs. Fixed in 1.1.7-tuxcare.1.","status":"published","published":"2026-08-04T14:52:06Z","modified":"2026-11-02T19:45:09.294017692Z","updated_at":"2026-11-02T20:30:40.499236Z"},{"id":"openSUSE-SU-2025:15597-1","title":"logback-1.2.13-1.1 on GA media","description":"These are all security issues fixed in the logback-1.2.13-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-10-03T00:00:00Z","modified":"2026-03-23T04:53:58.979011Z","updated_at":"2026-11-02T16:58:37.810934Z"},{"id":"USN-7616-1","title":"logback vulnerabilities","description":"It was discovered that logback could read malicious configuration files\nfrom LDAP servers. An attacker with the required permissions could possibly\nuse this issue to execute arbitrary code. This issue only affected Ubuntu\n16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-42550)  It was\ndiscovered that logback contained a serialization vulnerability. An\nattacker could possibly use this issue to cause a denial of service.\n(CVE-2023-6378)","status":"published","published":"2025-07-02T18:53:34Z","modified":"2026-06-25T13:32:30.601240566Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}