OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline() function of mdb_load. When processing malformed input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause an out-of-bounds read of one byte before the allocated heap buffer. This can cause mdb_load to crash, leading to a limited denial-of-service condition.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007094 advisory.

    OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit     8e1fda8, contain a heap buffer underflow in the readline() function of mdb_load. When processing malformed     input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause an out-of-     bounds read of one byte before the allocated heap buffer. This can cause mdb_load to crash, leading to a     limited denial-of-service condition.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0256-1 advisory.

    Security fixes:

    - CVE-2026-22185: Fixed possible crash in malicious DB (bsc#1256297)

    Other fixes:

    - Update to version 2.5.20+11:

        * ITS#10421 mdb_load: check for malicious input

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit     8e1fda8, contain a heap buffer underflow in the readline() function of mdb_load. When processing malformed     input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause an out-of-     bounds read of one byte before the allocated heap buffer. This can cause mdb_load to crash, leading to a     limited denial-of-service condition. (CVE-2026-22185)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
305929	Unity Linux 20.1070e Security Update: openldap (UTSA-2026-007094)	Nessus	Unity Linux Local Security Checks	medium
296426	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : openldap2_5 (SUSE-SU-2026:0256-1)	Nessus	SuSE Local Security Checks	medium
282442	Linux Distros Unpatched Vulnerability : CVE-2026-22185	Nessus	Misc.	medium

Detections

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CVE-2026-22185

medium

Tenable Plugins

medium

medium

medium