{"id":"CVE-2026-40459","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-40459","generatedAt":"2026-10-28T01:48:12.117Z","title":"PAC4J is vulnerable to LDAP Injection in multiple methods.","description":"PAC4J is vulnerable to LDAP Injection in multiple methods. A low-privileged remote attacker can inject crafted LDAP syntax into ID-based search parameters, potentially resulting in unauthorized LDAP queries and arbitrary directory operations.\n\nThis issue was fixed in PAC4J versions 4.5.10, 5.7.10 and 6.4.1","published":"2026-04-17T14:16:34.000Z","lastModified":"2026-06-17T10:45:20.000Z","status":"Analyzed","sourceIdentifier":"cvd@cert.pl","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-90"],"affected":["pac4j/pac4j"],"epss":{"score":0.00608,"percentile":0.48799,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://cert.pl/en/posts/2026/04/CVE-2026-40458/","tags":["Third Party Advisory"],"source":"cvd@cert.pl"},{"url":"https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html","tags":["Vendor Advisory"],"source":"cvd@cert.pl"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-40459","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}