{"id":"CVE-2021-35472","aliases":["DEBIAN-CVE-2021-35472","DSA-4943-1","EUVD-2021-22114","GHSA-9v87-664x-72qc","UBUNTU-CVE-2021-35472"],"status":"published","title":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to...","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01801,"percentile":0.7866,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-307"],"published":"2021-07-23T00:00:00Z","modified":"2026-10-23T18:03:16Z","fixes":[{"ecosystem":"Debian:12","package":"lemonldap-ng","fixed_in":["2.0.11+ds-4"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"lemonldap-ng","fixed_in":["2.0.11+ds-4"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"lemonldap-ng","fixed_in":["2.0.11+ds-4"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"lemonldap-ng","fixed_in":["2.0.2+ds-7+deb10u6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"lemonldap-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.11+ds-4"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"lemonldap-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.11+ds-4"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"lemonldap-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.11+ds-4"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"lemonldap-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.2+ds-7+deb10u6"}]}],"versions":["2.0.2+ds-7+deb10u1","2.0.2+ds-7+deb10u2","2.0.2+ds-7+deb10u3","2.0.2+ds-7+deb10u4","2.0.2+ds-7+deb10u5"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"lemonldap-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.3-1","1.4.6-1","1.4.6-2","1.4.6-3"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"lemonldap-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.10-1","1.9.13-2","1.9.14-1","1.9.15-1","1.9.16-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"lemonldap-ng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.5+ds-2","2.0.6+ds-2","2.0.7+ds-2"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"lemonldap-ng","product":"lemonldap\\"}],"references":[{"url":"https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2539","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","report"]},{"url":"https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/tags","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://www.debian.org/security/2021/dsa-4943","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/commit/8d3b763b6af2b8a9c4ad2765fbfabffec8a73af5","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35472"},{"url":"https://github.com/advisories/GHSA-9v87-664x-72qc"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-35472","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-35472","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-35472","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-35472","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","status":"published","published":"2021-07-27T05:32:26Z","modified":"2024-08-04T00:40:46.821Z","updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-22114","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","status":"published","published":"2021-07-27T05:32:26Z","modified":"2024-08-04T00:40:46Z","updated_at":"2026-11-03T03:24:30.441845Z"}],"ghsa":[{"id":"GHSA-9v87-664x-72qc","title":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to...","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","status":"published","published":"2022-05-24T19:09:22Z","modified":"2023-01-30T05:01:08Z","cwes":["CWE-307"],"updated_at":"2026-11-02T14:46:20.638842Z"}],"nvd":[{"id":"CVE-2021-35472","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","status":"published","published":"2021-07-30T14:15:17.887Z","modified":"2026-06-17T03:57:31.92Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:06:56.185362Z"}],"osv":[{"id":"CVE-2021-35472","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","status":"published","published":"2021-07-30T14:15:17.887Z","modified":"2026-10-20T10:54:46.171279566Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:20.13324Z"},{"id":"DEBIAN-CVE-2021-35472","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","status":"published","published":"2021-07-30T14:15:17.887Z","modified":"2026-10-23T18:03:16.15363146Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"UBUNTU-CVE-2021-35472","description":"An issue was discovered in LemonLDAP::NG before 2.0.12. Session cache corruption can lead to authorization bypass or spoofing. By running a loop that makes many authentication attempts, an attacker might alternately be authenticated as one of two different users.","status":"published","published":"2021-07-30T14:15:00Z","modified":"2025-10-24T04:50:25Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:27.870979Z"},{"id":"DSA-4943-1","title":"lemonldap-ng - security update","status":"published","published":"2021-07-23T00:00:00Z","modified":"2026-03-09T02:11:31.338184Z","updated_at":"2026-11-02T15:46:17.19998Z"}]}}