Is there a public exploit for CVE-2026-120955?

No public exploit for CVE-2026-120955 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-120955?

CVE-2026-120955 scores CVSS 8.7 (v4.0), rated high.

What does CVE-2026-120955 affect?

CVE-2026-120955 affects MONGODB C Driver.

8.7 High

The GridFS file download API in the MongoDB C Driver does not check the result of an internal operation under certain error conditions…

CVE-2026-120955

The GridFS file download API in the MongoDB C Driver does not check the result of an internal operation under certain error conditions during file retrieval. This can cause the process to terminate when stream operations continue. A user who can influence file download parameters can trigger this condition, which may result in service unavailability for applications using the affected API.

Assessment

CVSS: 8.7 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 November 2026
Last updated: 3 November 2026
Affected: MONGODB · C Driver
Assigner: mongodb

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

https://jira.mongodb.org/browse/CDRIVER-6494

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