CVE-2026-81523 Affecting libmongocrypt package, versions <1.20.3-1
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-DEBIANUNSTABLE-LIBMONGOCRYPT-19425033
- published29 Aug 2026
- disclosed27 Aug 2026
Introduced: 27 Aug 2026
CVE-2026-81523 (opens in a new tab)How to fix?
Upgrade Debian:unstable libmongocrypt to version 1.20.3-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libmongocrypt package and not the libmongocrypt package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
A missing input-validation issue in MongoDB libmongocrypt's automatic-encryption context setup allows a caller-supplied database identifier to be accepted without sanitization. The resulting impact is limited to incorrect schema selection, which may lead to limited disclosure or modification of information handled by the application.