VulnSocial

CVE-2026-120955

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-476

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-11-04: 111-04
Full discourse1 post
  • Upwind Security MDR@UpwindMDR

    🚨 HIGH - DoS Vulnerability in MongoDB C Driver GridFS API (CVE-2026-120955) A high-severity denial-of-service vulnerability in the MongoDB C Driver (mongoc) allows attackers who can influence GridFS file download parameters to trigger an unhandled error state in mongoc_gridfs_bucket_download_to_stream(), causing process termination and application crashes. 👉 Affected: MongoDB C Driver 1.25.0 – 1.30.14 and 2.0.0 – 2.5.7 | Upgrade to the latest patched releases or apply upstream fixes to prevent application termination on malformed GridFS metadata

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    380 followersView on X

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