Medium severity5.3NVD Advisory· Published May 4, 2026· Updated May 4, 2026
CVE-2026-33857
CVE-2026-33857
Description
Out-of-bounds Read vulnerability in mod_proxy_ajp of
Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- www.openwall.com/lists/oss-security/2026/05/04/15nvdMailing ListThird Party Advisory
- httpd.apache.org/security/vulnerabilities_24.htmlnvdVendor Advisory
News mentions
2- Patch Tuesday - May 2026Rapid7 Blog · May 13, 2026
- Critical, High-Severity Vulnerabilities Patched in Apache MINA, HTTP ServerSecurityWeek · May 5, 2026