Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package lmdb (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-LMDB-14905911
- published16 Jan 2026
- disclosed7 Jan 2026
Introduced: 7 Jan 2026
CVE-2026-22185 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lmdb package and not the lmdb package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2026-22185
- https://seclists.org/fulldisclosure/2026/Jan/5
- https://seclists.org/fulldisclosure/2026/Jan/8
- https://www.openldap.org/
- https://www.vulncheck.com/advisories/openldap-lmdb-mdb-load-heap-buffer-underflow-in-readline
- https://bugs.openldap.org/show_bug.cgi?id=10421