{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40459","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","state":"PUBLISHED","assignerShortName":"CERT-PL","dateReserved":"2026-04-13T10:06:07.141Z","datePublished":"2026-04-17T13:18:39.181Z","dateUpdated":"2026-04-17T13:54:22.069Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"PAC4J","vendor":"PAC4J","versions":[{"lessThan":"4.5.10","status":"affected","version":"4.0","versionType":"semver"},{"lessThan":"5.7.10","status":"affected","version":"5.0","versionType":"semver"},{"lessThan":"6.4.1","status":"affected","version":"6.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Bartłomiej Dmitruk, striga.ai"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","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.<br><br>This issue was fixed in PAC4J versions 4.5.10, 5.7.10 and 6.4.1<br>"}],"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"}],"impacts":[{"capecId":"CAPEC-136","descriptions":[{"lang":"en","value":"CAPEC-136: LDAP Injection"}]}],"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":{"orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","shortName":"CERT-PL","dateUpdated":"2026-04-17T13:18:39.181Z"},"references":[{"tags":["third-party-advisory"],"url":"https://cert.pl/en/posts/2026/04/CVE-2026-40458/"},{"tags":["vendor-advisory"],"url":"https://www.pac4j.org/blog/security-advisory-pac4j-core-and-ldap.html"}],"source":{"discovery":"EXTERNAL"},"title":"LDAP Injection in PAC4J","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-17T13:54:22.069Z"}}]}}