CVE-2026-97736 Auth bypass in tinyauth
Attackers can bypass authentication rules in tinyauth by appending allowed route strings due to unanchored regular expressions.
- 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-2026-97736?
CVE-2026-97736 is a medium-severity authentication bypass vulnerability in tinyauth, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tinyauth before 5.1.3 allows rule bypass by appending an allowed route string. This is caused by an unanchored regular expression.
Weakness: CWE-777
Which versions are affected by CVE-2026-97736?
How do I fix CVE-2026-97736?
No fix has been published for CVE-2026-97736 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-2026-97736 being exploited?
There is no known exploitation of CVE-2026-97736 in the wild and no public exploit code.
Sources
Also known as GHSA-r27r-rr9v-vv37, GHSA-rp6g-vgfj-26cr.