{"schema":"threatline.record/2","record":{"id":"CVE-2026-91012","aliases":[],"summary":"Apache Karaf: Path Traversal in Config Service Allows Manager-to-Admin Privilege Escalation","details":"org.apache.karaf.config.core.impl.ConfigRepositoryImpl#update(pid, properties),\nwhich backs the \"config\" MBean and the config:* shell commands, derives the file\nit writes a configuration to from caller-supplied input without checking that\nthe result stays inside ${karaf.etc}:\n\n  *  if the submitted property map contains a felix.fileinstall.filename entry, that value is turned directly into a File (getCfgFileFromProperty), so it can point to any absolute path the Karaf process can write to;\n  *  otherwise the configuration PID is concatenated verbatim into the target file name (generateConfigFilename(): new File(karaf.etc, pid + \".cfg\")), so a PID containing \"..\" segments resolves outside ${karaf.etc}. createFactoryConfiguration() has the same issue via the factory PID/alias.\n\n\nBoth code paths are reachable by any caller holding the \"manager\" role under Karaf's shipped command/JMX ACL (org.apache.karaf.command.acl.conf.cfg: \"update = manager\"). Such a user can therefore write attacker-controlled content to any file the Karaf process can write, including files the same ACL otherwise reserves to \"admin\" (etc/users.properties, etc/*.acl.*.cfg, etc/org.apache.karaf.management.cfg, and similar), allowing a manager-role user to grant themselves the admin role or otherwise take over the container.\n\n\n\n\n\n\nConfigMBeanImpl.install() and the config:install shell command already guarded the equivalent risk on their own code path with a finalname.contains(\"..\") string check, but that check does not stop absolute paths or symlink-based escapes, and it was never applied to ConfigRepositoryImpl.update() / createFactoryConfiguration() at all.","categories":["Unclassified"],"product":"Apache Karaf","vendor":"Apache Software Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-91012","source_modified_at":"2026-10-01T14:10:47.838Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Apache Karaf","vendor":"Apache Software Foundation","versions":[{"status":"affected","version":"0","lessThan":"4.4.12","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-91012","source_modified_at":"2026-10-01T14:10:47.838Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Apache Karaf","ecosystem":null},"version":"4.4.12","basis":"first unaffected version stated in the CVE record"}],"cvss":9.8,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00628,"percentile":0.49475,"score_date":"2026-10-23"},"published_at":"2026-09-29T08:34:11.409Z","modified_at":"2026-10-01T14:10:47.838Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-91012","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-01T14:10:47.838Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91012","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://lists.apache.org/thread/op8trtz1qxkdwj2rjozhd9yt2yd6nhw4","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"total","assessed_at":"2026-10-01T14:10:12.183455Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-01T14:10:47.838Z","content_hash":"17c4e812db49f8fb19b893b9ba72cc6aa4d11f01a527d43772e195ff26665fc6"}}