CVE-2026-8793 PaperCut NG/MF: Insufficient brute-force protection
Attackers can bypass brute-force protections to perform credential stuffing attacks, potentially leading to account takeover.
- 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-2026-8793?
CVE-2026-8793 is a medium-severity vulnerability in PaperCut NG/MF, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations.
Weakness: CWE-307
Which versions are affected by CVE-2026-8793?
How do I fix CVE-2026-8793?
No fix has been published for CVE-2026-8793 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8793 being exploited?
There is no known exploitation of CVE-2026-8793 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-845j-gc55-fc8w.