CVE-2026-85300 Apache Camel: Camel-PQC Private Key Disclosure via Key Material Written with Default File Permissions
Local attackers can read private keys if the host umask allows group or world read access to files written by the Apache Camel PQC component.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85300?
CVE-2026-85300 is a medium-severity vulnerability in Apache Camel, published on 19 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Incorrect Default Permissions vulnerability in Apache Camel PQC component.
This issue affects Apache Camel: from 4.12.0 before 4.18.5, from 4.19.0 before 4.22.1.
When the component wrote generated key material to disk it did so with the permissions the process default umask produced, rather than restricting the file to its owner. On a host whose umask allows group or world read, the private key was therefore readable by other local accounts. The exposure is to a local party rather than to the remote sender that the Camel threat model treats as the primary adversary, which is why the severity is assessed low, but the consequence where it applies is complete: possession of the private key defeats every signature and key exchange the deployment performs with it.
Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases stream should upgrade to 4.22.1. Key material is now written with owner-only permissions. For deployments that cannot upgrade immediately, place the key directory on a path only the service account can traverse, and tighten the process umask. Key material already written with permissive permissions should be treated as exposed and rotated.
Weakness: CWE-276
Which versions are affected by CVE-2026-85300?
How do I fix CVE-2026-85300?
No fix has been published for CVE-2026-85300 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-85300 being exploited?
There is no known exploitation of CVE-2026-85300 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-p6fv-47jx-6w55.