{"id":"CVE-2026-40459","state":"PUBLISHED","title":"LDAP Injection in PAC4J","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","publishedAt":"2026-04-17T13:18:39.181Z","updatedAt":"2026-04-17T13:54:22.069Z","severity":{"score":8.7,"label":"High","version":"4.0","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","source":"CERT-PL"},"assigner":"CERT-PL","products":["PAC4J PAC4J"],"affected":[{"vendor":"PAC4J","product":"PAC4J","defaultStatus":"unaffected","versions":[{"version":"4.0","status":"affected","lessThan":"4.5.10","versionType":"semver"},{"version":"5.0","status":"affected","lessThan":"5.7.10","versionType":"semver"},{"version":"6.0","status":"affected","lessThan":"6.4.1","versionType":"semver"}]}],"references":["https://cert.pl/en/posts/2026/04/CVE-2026-40458/","https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html"],"weaknesses":["CWE-90"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40459.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40459","state":"PUBLISHED","datePublished":"2026-04-17T13:18:39.181Z","dateUpdated":"2026-04-17T13:54:22.069Z","assignerShortName":"CERT-PL","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateReserved":"2026-04-13T10:06:07.141Z"},"containers":{"cna":{"title":"LDAP Injection in PAC4J","descriptions":[{"lang":"en","value":"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"}],"affected":[{"vendor":"PAC4J","product":"PAC4J","defaultStatus":"unaffected","versions":[{"version":"4.0","status":"affected","lessThan":"4.5.10","versionType":"semver"},{"version":"5.0","status":"affected","lessThan":"5.7.10","versionType":"semver"},{"version":"6.0","status":"affected","lessThan":"6.4.1","versionType":"semver"}]}],"references":[{"url":"https://cert.pl/en/posts/2026/04/CVE-2026-40458/","tags":["third-party-advisory"]},{"url":"https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html","tags":["vendor-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-90","description":"CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CERT-PL","orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateUpdated":"2026-04-17T13:18:39.181Z"},"credits":[{"lang":"en","type":"finder","value":"Bartłomiej Dmitruk, striga.ai"}],"impacts":[{"capecId":"CAPEC-136","descriptions":[{"lang":"en","value":"CAPEC-136: LDAP Injection"}]}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-17T13:52:22.145596Z","id":"CVE-2026-40459","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-17T13:54:22.069Z"}}]}}}