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    4 vulnerabilities found for OpenDJ by OpenIdentityPlatform

    CVE-2026-73644 (GCVE-0-2026-73644)

    Vulnerability from nvd – Published: 2026-08-13 17:52 – Updated: 2026-08-13 17:52
    VLAI
    Title
    OpenDJ: Authorization bypass in SASL PLAIN allowing a `proxied-auth` holder to impersonate any resolvable non-root user without an ACI proxy grant
    Summary
    OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.2, the SASL PLAIN authorization identity path in opendj-server-legacy/src/main/java/org/opends/server/extensions/PlainSASLMechanismHandler.java checked the PROXIED_AUTH privilege but did not evaluate the mayProxy proxy ACI scope when an authzid resolved to a different user. Both dn: and u: or bare authzid forms could therefore let an authenticated account holding PROXIED_AUTH assume any resolvable non-root identity outside the identities permitted by its proxy ACI. The fix returns INVALID_CREDENTIALS (49) before password verification when the target authorization identity is not permitted. This issue is fixed in version 5.1.2.
    Severity
    9.6 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
    CWE
    • CWE-285 - Improper Authorization
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
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    "cna": {
      "affected": [
        {
          "product": "OpenDJ",
          "vendor": "OpenIdentityPlatform",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.1.2"
            }
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.2, the SASL PLAIN authorization identity path in opendj-server-legacy/src/main/java/org/opends/server/extensions/PlainSASLMechanismHandler.java checked the PROXIED_AUTH privilege but did not evaluate the mayProxy proxy ACI scope when an authzid resolved to a different user. Both dn: and u: or bare authzid forms could therefore let an authenticated account holding PROXIED_AUTH assume any resolvable non-root identity outside the identities permitted by its proxy ACI. The fix returns INVALID_CREDENTIALS (49) before password verification when the target authorization identity is not permitted. This issue is fixed in version 5.1.2."
        }
      ],
      "metrics": [
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            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
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              "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
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      ],
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      },
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          "name": "https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-p279-2cqp-84jg",
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          ],
          "url": "https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-p279-2cqp-84jg"
        },
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          "name": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/5c326850f1ab945cfca7ac9c5aaf77d1052c6bed",
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        },
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          "url": "https://github.com/OpenIdentityPlatform/OpenDJ/releases/tag/5.1.2"
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      ],
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      },
      "title": "OpenDJ: Authorization bypass in SASL PLAIN allowing a `proxied-auth` holder to impersonate any resolvable non-root user without an ACI proxy grant"
    }
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    CVE-2025-27497 (GCVE-0-2025-27497)

    Vulnerability from nvd – Published: 2025-03-05 15:59 – Updated: 2025-03-05 16:16
    VLAI
    Title
    OpenDJ Denial of Service (Dos) using alias loop
    Summary
    OpenDJ is an LDAPv3 compliant directory service. OpenDJ prior to 4.9.3 contains a denial-of-service (DoS) vulnerability that causes the server to become unresponsive to all LDAP requests without crashing or restarting. This issue occurs when an alias loop exists in the LDAP database. If an ldapsearch request is executed with alias dereferencing set to "always" on this alias entry, the server stops responding to all future requests. Fortunately, the server can be restarted without data corruption. This vulnerability is fixed in 4.9.3.
    Severity
    8.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-03-05 16:16 UTC
    CWE
    • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
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    CVE-2026-73644 (GCVE-0-2026-73644)

    Vulnerability from cvelistv5 – Published: 2026-08-13 17:52 – Updated: 2026-08-13 17:52
    VLAI
    Title
    OpenDJ: Authorization bypass in SASL PLAIN allowing a `proxied-auth` holder to impersonate any resolvable non-root user without an ACI proxy grant
    Summary
    OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.2, the SASL PLAIN authorization identity path in opendj-server-legacy/src/main/java/org/opends/server/extensions/PlainSASLMechanismHandler.java checked the PROXIED_AUTH privilege but did not evaluate the mayProxy proxy ACI scope when an authzid resolved to a different user. Both dn: and u: or bare authzid forms could therefore let an authenticated account holding PROXIED_AUTH assume any resolvable non-root identity outside the identities permitted by its proxy ACI. The fix returns INVALID_CREDENTIALS (49) before password verification when the target authorization identity is not permitted. This issue is fixed in version 5.1.2.
    Severity
    9.6 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
    CWE
    • CWE-285 - Improper Authorization
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
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        {
          "product": "OpenDJ",
          "vendor": "OpenIdentityPlatform",
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        }
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    CVE-2025-27497 (GCVE-0-2025-27497)

    Vulnerability from cvelistv5 – Published: 2025-03-05 15:59 – Updated: 2025-03-05 16:16
    VLAI
    Title
    OpenDJ Denial of Service (Dos) using alias loop
    Summary
    OpenDJ is an LDAPv3 compliant directory service. OpenDJ prior to 4.9.3 contains a denial-of-service (DoS) vulnerability that causes the server to become unresponsive to all LDAP requests without crashing or restarting. This issue occurs when an alias loop exists in the LDAP database. If an ldapsearch request is executed with alias dereferencing set to "always" on this alias entry, the server stops responding to all future requests. Fortunately, the server can be restarted without data corruption. This vulnerability is fixed in 4.9.3.
    Severity
    8.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-03-05 16:16 UTC
    CWE
    • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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