# CVE-2026-119179: MongoDB Node.js driver: Connection pool desynchronization after operation timeout can expose other user's data

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

A flaw in the connection management layer of the MongoDB Node.js driver can leave a pooled network connection in the pool for reuse while data from an earlier operation is still outstanding on it. In applications that enable an optional client-side operation timeout, an unauthenticated party that can send ordinary requests to the application may cause database replies to be paired with the wrong requests. This may result in unintended disclosure of other users' records, incorrect operation results being returned, and failures of legitimate requests.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- MongoDB / Node.js Driver: ≥ 6.11.0; < 6.22.0 (affected, semver); ≥ 7.0.0; < 7.8.0 (affected, semver). Source: CNA: mongodb

## Severity and prioritization

- CVSS 4.0: 8.3 (high); CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N; source: CNA: mongodb

- CVSS 3.1: 7 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L; source: CNA: mongodb

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-226

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://jira.mongodb.org/browse/NODE-7958 (CNA: mongodb)

## Provenance

- CNA: mongodb: https://www.cve.org/CVERecord?id=CVE-2026-119179; retrieved 2026-11-03; source updated 2026-11-03

Revision: 03bbbc297f0b9434c3ea86b527e4082200a0fb2bbba67902b53a27f618cc16f0

Canonical: https://y2.dev/cve/CVE-2026-119179

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