CVE-2026-114655
mediumpriority · track · 0EPSS 0.003 · 19 %ileFREPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.3–6
weaknesses
The CWE weakness classes this flaw belongs to.
affected products
Products and version ranges known to be affected.
No affected products recorded.
advisories (1)
Vendor and ecosystem advisories describing this.
- CERTFR-2026-AVI-1386Multiples vulnérabilités dans les produits MongoDBFrançais2026-10-26vendor · certfrFR
sources
Which sources assert this record, and when.
references (3) nvd
External citations — patches, advisories, analysis.
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