Buffer Underwrite (Buffer Underflow) 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-17339811
- published15 Jun 2026
- disclosed8 Jun 2026
- creditZhenpeng (Leo) Lin, Bartlomiej Dmitruk
Introduced: 8 Jun 2026
CVE-2026-44631 (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 Buffer Underwrite (Buffer Underflow) via the ap_regname() function when processing crafted regular expressions in the configuration. An attacker can cause memory corruption by supplying specially crafted input.