CVE-2026-114655 Affecting libmongocrypt package, versions *
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-DEBIAN12-LIBMONGOCRYPT-21663532
- published24 Oct 2026
- disclosed22 Oct 2026
Introduced: 22 Oct 2026
NewCVE-2026-114655 (opens in a new tab)How to fix?
There is no fixed version for Debian:12 libmongocrypt.
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:12 relevant fixed versions and status.
libmongocrypt builds requests to external key management services (AWS, Azure and GCP) by inserting values from key vault documents, KMS provider configuration and KMS responses into request lines, headers and signed request bodies without validating or encoding them for each context. A user with write access to the key vault collection can alter the structure of these requests, including adding members to request bodies and token claims that the library then signs with the application's credentials. This may result in key management operations being performed with parameters the application did not intend.