CVE-2026-36176 Information disclosure in n/a
Attackers with physical access can extract pre-signed Backblaze B2 upload URLs from the serial console to perform unauthorized cloud storage operations.
- 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-2026-36176?
CVE-2026-36176 is a high-severity vulnerability in n/a, published on 4 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
GNCC GP5 v7.1.76 was discovered to store pre-signed Backblaze B2 upload URLs (PUT requests) in plaintext to the serial console. This allows physically-proximate attackers to extract these active tokens to perform unauthorized operations via monitoring the serial UART interface.
Weakness: CWE-312
Which versions are affected by CVE-2026-36176?
How do I fix CVE-2026-36176?
No fix has been published for CVE-2026-36176 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-36176 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-36176 exists.
Sources
Also known as GHSA-82x6-h78j-2frc.