CVE-2026-40799

MEDIUMCVSS 5.3/10EPSS 0.31%

Last modified

CVE-2026-40799 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Unauthenticated Broken Authentication in Simple Cloudflare Turnstile <= 1.38.0 versions.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

Unauthenticated Broken Authentication in Simple Cloudflare Turnstile <= 1.38.0 versions.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Probability
0.31%

22.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-40799?
Unauthenticated Broken Authentication in Simple Cloudflare Turnstile <= 1.38.0 versions.
How severe is CVE-2026-40799?
CVE-2026-40799 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2026-40799?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40799?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST