CVE-2026-109359 Contrast 1.8.0 before 1.24.1 Mesh CA Key Cross-Manifest Exposure via Peer Recovery
Attackers can expose the Mesh CA key or issue trusted certificates to withdrawn workloads by exploiting improper verification in peer recovery.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109359?
CVE-2026-109359 is a high-severity vulnerability in edgelesssys contrast, published on 12 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Contrast 1.8.0 before 1.24.1 contains an improper verification vulnerability in Coordinator peer recovery that fails to confirm the serving peer uses the same manifest generation. Attackers with write access to manifest history can replay a superseded history head so withdrawn workloads obtain trusted mesh certificates, or with the secret seed disclose the Mesh CA key.
Weakness: CWE-345
Which versions are affected by CVE-2026-109359?
How do I fix CVE-2026-109359?
No fix has been published for CVE-2026-109359 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109359 being exploited?
There is no known exploitation of CVE-2026-109359 in the wild and no public exploit code.
Sources
Also known as GHSA-mr8p-7h3w-x7jp, GHSA-rxcv-p3px-m3c3.