CVE-2026-44671

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44671", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-07T16:20:08.659Z", "datePublished": "2026-05-14T21:13:03.077Z", "dateUpdated": "2026-05-15T18:05:06.108Z"}, "containers": {"cna": {"title": "ZITADEL: LDAP Filter Injection in Login Flow", "problemTypes": [{"descriptions": [{"cweId": "CWE-90", "lang": "en", "description": "CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px"}, {"name": "https://github.com/zitadel/zitadel/releases/tag/v3.4.10", "tags": ["x_refsource_MISC"], "url": "https://github.com/zitadel/zitadel/releases/tag/v3.4.10"}, {"name": "https://github.com/zitadel/zitadel/releases/tag/v4.15.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/zitadel/zitadel/releases/tag/v4.15.0"}], "affected": [{"vendor": "zitadel", "product": "zitadel", "versions": [{"version": ">= 2.71.11, < 3.4.10", "status": "affected"}, {"version": ">= 4.0.0, < 4.15.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-14T21:13:03.077Z"}, "descriptions": [{"lang": "en", "value": "ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allows unauthenticated attackers to perform LDAP Filter Injection during the login process. While this vulnerability does not allow for a full authentication bypass, an attacker can use LDAP metacharacters (such as *, (, )) to perform blind LDAP injection. By observing the different failure (or success) responses, an attacker can systematically enumerate valid usernames and extract sensitive attribute data from the connected LDAP directory. This vulnerability is fixed in 3.4.10 and 4.15.0."}], "source": {"advisory": "GHSA-rxvx-hhpj-q6px", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-15T15:28:24.578778Z", "id": "CVE-2026-44671", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-15T18:05:06.108Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44671", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-07T16:20:08.659Z", "datePublished": "2026-05-14T21:13:03.077Z", "dateUpdated": "2026-05-15T18:05:06.108Z"}, "containers": {"cna": {"title": "ZITADEL: LDAP Filter Injection in Login Flow", "problemTypes": [{"descriptions": [{"cweId": "CWE-90", "lang": "en", "description": "CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px"}, {"name": "https://github.com/zitadel/zitadel/releases/tag/v3.4.10", "tags": ["x_refsource_MISC"], "url": "https://github.com/zitadel/zitadel/releases/tag/v3.4.10"}, {"name": "https://github.com/zitadel/zitadel/releases/tag/v4.15.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/zitadel/zitadel/releases/tag/v4.15.0"}], "affected": [{"vendor": "zitadel", "product": "zitadel", "versions": [{"version": ">= 2.71.11, < 3.4.10", "status": "affected"}, {"version": ">= 4.0.0, < 4.15.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-14T21:13:03.077Z"}, "descriptions": [{"lang": "en", "value": "ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allows unauthenticated attackers to perform LDAP Filter Injection during the login process. While this vulnerability does not allow for a full authentication bypass, an attacker can use LDAP metacharacters (such as *, (, )) to perform blind LDAP injection. By observing the different failure (or success) responses, an attacker can systematically enumerate valid usernames and extract sensitive attribute data from the connected LDAP directory. This vulnerability is fixed in 3.4.10 and 4.15.0."}], "source": {"advisory": "GHSA-rxvx-hhpj-q6px", "discovery": "UNKNOWN"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-44671", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-15T15:28:24.578778Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-15T15:28:27.827Z"}}]}}

{"affected": [{"affectedData": [{"product": "zitadel", "vendor": "zitadel", "versions": [{"status": "affected", "version": ">= 2.71.11, < 3.4.10"}, {"status": "affected", "version": ">= 4.0.0, < 4.15.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7FDA85BE-740B-4D87-AEB4-A9771857DC3A", "versionEndExcluding": "3.4.10", "versionStartIncluding": "2.71.11", "vulnerable": true}, {"criteria": "cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F8553024-15AB-4EE9-A14D-7DBC4CBE7E01", "versionEndExcluding": "4.15.0", "versionStartIncluding": "4.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allows unauthenticated attackers to perform LDAP Filter Injection during the login process. While this vulnerability does not allow for a full authentication bypass, an attacker can use LDAP metacharacters (such as *, (, )) to perform blind LDAP injection. By observing the different failure (or success) responses, an attacker can systematically enumerate valid usernames and extract sensitive attribute data from the connected LDAP directory. This vulnerability is fixed in 3.4.10 and 4.15.0."}, {"lang": "es", "value": "ZITADEL es una plataforma de gesti\u00f3n de identidades de c\u00f3digo abierto. Desde la versi\u00f3n 2.71.11 hasta antes de la 3.4.10 y la 4.15.0, se descubri\u00f3 una vulnerabilidad en la implementaci\u00f3n del proveedor de identidad LDAP de Zitadel, que no escapa correctamente los nombres de usuario proporcionados por el usuario antes de incorporarlos en los filtros de b\u00fasqueda LDAP. Esto permite a atacantes no autenticados realizar inyecci\u00f3n de filtro LDAP durante el proceso de inicio de sesi\u00f3n. Si bien esta vulnerabilidad no permite una omisi\u00f3n de autenticaci\u00f3n completa, un atacante puede usar metacaracteres LDAP (como *, (, )) para realizar inyecci\u00f3n LDAP ciega. Al observar las diferentes respuestas de fallo (o \u00e9xito), un atacante puede enumerar sistem\u00e1ticamente nombres de usuario v\u00e1lidos y extraer datos de atributos sensibles del directorio LDAP conectado. Esta vulnerabilidad se corrige en las versiones 3.4.10 y 4.15.0."}], "id": "CVE-2026-44671", "lastModified": "2026-11-11T20:10:00.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44671", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-15T15:28:24.578778Z", "version": "2.0.3"}}]}, "published": "2026-05-14T22:16:44.850", "references": [{"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/zitadel/zitadel/releases/tag/v3.4.10"}, {"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/zitadel/zitadel/releases/tag/v4.15.0"}, {"source": "security-advisories@github.com", "tags": ["Mitigation", "Patch", "Vendor Advisory"], "url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-rxvx-hhpj-q6px"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-90"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.71.11,3.4.10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.15.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "zitadel", "source": "cna", "vendor": "zitadel"}, "product": "zitadel", "vendor": "zitadel"}], "created": "2026-05-14T22:15:15.628459+00:00", "updated": "2026-05-14T22:45:31.086558+00:00", "vendors": ["zitadel", "zitadel$PRODUCT$zitadel"]}