CVE-2026-56355 Auth bypass in Savane
Attackers can bypass authorization controls in GNU Savane by exploiting the use of untrusted data in the authentication process.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56355?
CVE-2026-56355 is a low-severity authentication bypass vulnerability in GNU Savane, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
GNU Savannah Administration Savane through 3.17 uses untrusted data as part of authorization.
Weakness: CWE-696
Which versions are affected by CVE-2026-56355?
How do I fix CVE-2026-56355?
No fix has been published for CVE-2026-56355 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-56355 being exploited?
There is no known exploitation of CVE-2026-56355 in the wild and no public exploit code.
Sources
Also known as GHSA-g7v6-x8xj-fvjm.