VDB-339948 · CVE-2026-22185 · EUVD-2026-1169

OpenLDAP Lightning Memory-Mapped Database up to 2.6.10 readline out-of-bounds

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5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in OpenLDAP Lightning Memory-Mapped Database up to 2.6.10. This issue affects the function readline. The manipulation results in out-of-bounds. This vulnerability was named CVE-2026-22185. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in OpenLDAP Lightning Memory-Mapped Database up to 2.6.10. Affected is the function readline. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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 weakness was presented by Ron Edgerson. The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2026-22185 since 01/06/2026. The exploitability is told to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 282442 (Linux Distros Unpatched Vulnerability : CVE-2026-22185), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (282442), EUVD (EUVD-2026-1169) and CERT Bund (WID-SEC-2026-0036). Once again VulDB remains the best source for vulnerability data.

Affected

SUSE Linux
Open Source OpenLDAP

Productinfo

Type

Directory Service Software

Vendor

OpenLDAP

Name

Lightning Memory-Mapped Database

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 282442
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-22185

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/06/2026 CVE reserved
01/07/2026 +1 days Advisory disclosed
01/07/2026 +0 days VulDB entry created
01/25/2026 +18 days VulDB entry last update

Sourcesinfo

Advisory: seclists.org
Researcher: Ron Edgerson
Status: Not defined

CVE: CVE-2026-22185 (🔒)
GCVE (CVE): GCVE-0-2026-22185
GCVE (VulDB): GCVE-100-339948
EUVD: 🔒
CERT Bund: WID-SEC-2026-0036 - OpenLDAP: Schwachstelle ermöglicht Denial of Service und Offenlegung von Informationen

Entryinfo

Created: 01/07/2026 22:26
Updated: 01/25/2026 03:30
Changes: 01/07/2026 22:26 (67), 01/08/2026 19:11 (7), 01/08/2026 20:18 (2), 01/08/2026 23:09 (1), 01/09/2026 11:22 (4), 01/13/2026 16:37 (2), 01/25/2026 03:30 (2)
Complete: 🔍
Cache ID: 216::103