https://seclists.org/oss-sec/2026/q2/174: [CVE-2026-33691] OWASP CRS whitespace padding bypass vulnerability
Published Apr 18, 2026
·Updated
Affected Software
1 affected component
OWASP Core Rule Set<3.3.9, <4.25.x, <4.8.x
Frequently Asked Questions
1
What is the severity of CVE-2026-33691?
CVE-2026-33691 has a moderate severity rating due to its potential to bypass security measures.
2
How do I fix CVE-2026-33691?
To remediate CVE-2026-33691, it is recommended to update to the latest version of the OWASP Core Rule Set that addresses this vulnerability.
3
What impact does CVE-2026-33691 have on security?
CVE-2026-33691 can lead to the disabling of important security headers, thereby increasing the risk of exploitation.
4
Who is affected by CVE-2026-33691?
CVE-2026-33691 affects users and organizations utilizing the OWASP Core Rule Set within their web application firewalls.
5
When was CVE-2026-33691 published?
CVE-2026-33691 was published on April 18, 2026.