CVE-2026-13067 tlsCATrusts Role Restriction Not Enforced via PROXY Protocol v2 on Unix Domain Socket
Attackers with local socket access and valid certificates can bypass role restrictions, gaining unintended privileges in MongoDB.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-13067?
CVE-2026-13067 is a high-severity authentication bypass vulnerability in Mongodb Mongodb, published on 22 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
When PROXY protocol v2 is used on the Unix domain socket path, roles derived from X.509 client certificates may not be validated against the configured tlsCATrusts allow-list. This can result in unintended role assignments following MONGODB-X509 authentication. Affected scenarios require local access to the proxy Unix domain socket and a valid X.509 certificate issued by a trusted certificate authority.
Weakness: CWE-863
Which versions are affected by CVE-2026-13067?
1 open source package ship an affected version, including mongodb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mongodb Bitnami | From 8.0.0 | 8.0.28, 8.3.7 |
Products include Mongodb Mongodb.
How do I fix CVE-2026-13067?
Upgrade mongodb to a fixed version for your release line: 8.0.28 or 8.3.7.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-13067 being exploited?
There is no known exploitation of CVE-2026-13067 in the wild and no public exploit code.
Other vulnerabilities in Mongodb Mongodb
- CVE-2025-14847 MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency
- CVE-2026-82067 Auth bypass in MongoDB Server
- CVE-2026-13072 MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption
- CVE-2017-15535 Denial of service in n/a
- CVE-2026-18691 Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure
Sources
Also known as BIT-mongodb-2026-13067, GHSA-fcc5-5hp3-gxp7, MINI-8gch-vw7j-3cm9, MINI-vx38-hcj8-7g53, UBUNTU-CVE-2026-13067.