CVE-2026-43951

MediumCVSS 6.5/10Last modified Jul 23, 2026

Description

Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
Apache Software FoundationApache HTTP Server>= 2.4.0, <= 2.4.67

References

Timeline

Published
Jun 8, 2026
Last modified
Jul 23, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-439587.8A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer oCVE-2026-43968.1Improper certificate validation in Devolutions Hub Reporting Service 2025.3.1.1 and earlier allows a network attacker to perform a man-in-CVE-2026-439617.8A flaw was found in Vim's netrw plugin. A crafted filename containing quote characters and expression fragments can break out of the quoted CVE-2026-439647.5Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced statuCVE-2026-439655.6Path traversal vulnerability in Gleam's dependency management allows arbitrary directory deletion via malicious build/packages/packages.tomlCVE-2026-439665.3Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in ninenines cowlib allows HTTP CVE-2026-439677.5Inefficient Algorithmic Complexity vulnerability in absinthe-graphql absinthe allows unauthenticated denial of service via quadratic fragmenCVE-2026-439684.0Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in ninenines cowlib allows SSE event splitting and injection via CVE-2026-439693.2Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in ninenines cowlib allows HTTP request splitting and cookie smugCVE-2026-439708.2Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in ninenines cowlib allows unauthenticated remote denial of sCVE-2026-439716.3Improper Encoding or Escaping of Output vulnerability in ninenines cowlib allows Link header directive smuggling via unescaped special charaCVE-2026-439727.2Origin Validation Error vulnerability in ninenines gun (gun_http2 module) allows cross-origin cookie injection via unvalidated HTTP/2 PUSH_P
CVE-2026-43951: Medium severity, CVSS 6.5 | Vulnix