Out-of-bounds Read Affecting apache/httpd package, versions [2.4.0,2.4.68)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-APACHEHTTPD-17394056
- published22 Jun 2026
- disclosed8 Jun 2026
- creditUnknown
Introduced: 8 Jun 2026
CVE-2026-43951 (opens in a new tab)How to fix?
Upgrade apache/httpd to version 2.4.68 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the merge_response_headers module when both mod_headers and mod_mime are enabled and multiple response languages are configured. An attacker can cause the server to crash by sending specially crafted requests that trigger an out-of-bounds read.