CVE-2026-73644

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Source
https://cve.org/CVERecord?id=CVE-2026-73644
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73644.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-73644
Aliases
Published
2026-08-13T17:52:48.641Z
Modified
2026-08-15T16:52:34.036006Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
OpenDJ: Authorization bypass in SASL PLAIN allowing a `proxied-auth` holder to impersonate any resolvable non-root user without an ACI proxy grant
Details

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 PROXIEDAUTH 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 PROXIEDAUTH 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.

Database specific 
{
    "cwe_ids": [
        "CWE-285",
        "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73644.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/openidentityplatform/opendj

Affected ranges

Type
GIT
Repo
https://github.com/openidentityplatform/opendj
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5c326850f1ab945cfca7ac9c5aaf77d1052c6bed
Fixed
0802aa4081e1c175c40bde1af59439a20fcc5670
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.1.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.0.0-M4
3.0.0-M5
3.0.0-M6
3.0.0-M7
4.*
4.0.0-M1
4.0.1
4.0.2
4.0.3
4.1.10
4.1.6
4.1.9
4.10.0
4.10.1
4.10.2
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.4.1
4.4.10
4.4.11
4.4.12
4.4.13
4.4.14
4.4.15
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.5.0
4.5.1
4.5.3
4.5.4
4.5.5
4.5.6
4.5.9
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.7.0
4.8.0
4.8.1
4.8.2
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
5.*
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.1.1
Other
last-common-commit-with-opendj-sdk-repo

Database specific

vanir_signatures_modified 
"2026-08-15T16:52:34Z"
vanir_signatures 
[
    {
        "id": "CVE-2026-73644-4fed1596",
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "length": 6304.0,
            "function_hash": "155686885625242155124211981484847536523"
        },
        "source": "https://github.com/openidentityplatform/opendj/commit/5c326850f1ab945cfca7ac9c5aaf77d1052c6bed",
        "target": {
            "function": "processSASLBind",
            "file": "opendj-server-legacy/src/main/java/org/opends/server/extensions/PlainSASLMechanismHandler.java"
        }
    },
    {
        "id": "CVE-2026-73644-6850cc28",
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
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        "source": "https://github.com/openidentityplatform/opendj/commit/5c326850f1ab945cfca7ac9c5aaf77d1052c6bed",
        "target": {
            "function": "setUp",
            "file": "opendj-server-legacy/src/test/java/org/opends/server/types/PrivilegeTestCase.java"
        }
    },
    {
        "id": "CVE-2026-73644-7620d53a",
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
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        "target": {
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    {
        "id": "CVE-2026-73644-78337230",
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
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        "source": "https://github.com/openidentityplatform/opendj/commit/5c326850f1ab945cfca7ac9c5aaf77d1052c6bed",
        "target": {
            "file": "opendj-server-legacy/src/main/java/org/opends/server/extensions/SASLContext.java"
        }
    },
    {
        "id": "CVE-2026-73644-d6bcf61e",
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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            ]
        },
        "source": "https://github.com/openidentityplatform/opendj/commit/5c326850f1ab945cfca7ac9c5aaf77d1052c6bed",
        "target": {
            "file": "opendj-server-legacy/src/main/java/org/opends/server/extensions/PlainSASLMechanismHandler.java"
        }
    },
    {
        "id": "CVE-2026-73644-ea7ba646",
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "length": 469.0,
            "function_hash": "248321155339333876013971784048748117484"
        },
        "source": "https://github.com/openidentityplatform/opendj/commit/5c326850f1ab945cfca7ac9c5aaf77d1052c6bed",
        "target": {
            "function": "hasPermission",
            "file": "opendj-server-legacy/src/main/java/org/opends/server/extensions/SASLContext.java"
        }
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73644.json"