Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...}) This issue affects Apache HTTP Server: from… (CVE-2026-56154)
A Use After Free vulnerability exists in Apache HTTP Server's mod_rewrite module when using the lookahead feature (%{LA-U:HTTP:...}). This affects Apache HTTP Server versions from 2.4.0 through 2.4.68. The vulnerability could lead to memory corruption issues. No CVSS score or detailed impact information is provided. No patch or remediation details are available in the provided data.
AI Analysis
Technical Summary
CVE-2026-56154 describes a Use After Free vulnerability in the mod_rewrite module of Apache HTTP Server when the lookahead syntax (%{LA-U:HTTP:...}) is used. This affects versions from 2.4.0 up to and including 2.4.68. The vulnerability involves improper memory handling that could potentially be exploited to cause memory corruption. No further technical details or exploitation information is provided.
Potential Impact
The vulnerability could allow attackers to cause memory corruption in affected Apache HTTP Server instances using mod_rewrite with lookahead. Specific impacts such as remote code execution or denial of service are not detailed in the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...}) This issue affects Apache HTTP Server: from… (CVE-2026-56154)
Description
A Use After Free vulnerability exists in Apache HTTP Server's mod_rewrite module when using the lookahead feature (%{LA-U:HTTP:...}). This affects Apache HTTP Server versions from 2.4.0 through 2.4.68. The vulnerability could lead to memory corruption issues. No CVSS score or detailed impact information is provided. No patch or remediation details are available in the provided data.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-56154 describes a Use After Free vulnerability in the mod_rewrite module of Apache HTTP Server when the lookahead syntax (%{LA-U:HTTP:...}) is used. This affects versions from 2.4.0 up to and including 2.4.68. The vulnerability involves improper memory handling that could potentially be exploited to cause memory corruption. No further technical details or exploitation information is provided.
Potential Impact
The vulnerability could allow attackers to cause memory corruption in affected Apache HTTP Server instances using mod_rewrite with lookahead. Specific impacts such as remote code execution or denial of service are not detailed in the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-f5cw-5j88-wxxc
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-56154"]
- State
- PUBLISHED
Threat ID: 6abeb3e3a43b0b3b89ed01e3
Added to database: 10/01/2026, 19:26:27 UTC
Last enriched: 10/01/2026, 19:29:02 UTC
Last updated: 10/02/2026, 02:45:56 UTC
Views: 4
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