CVE-2026-34355: CWE-122 Heap-based Buffer Overflow in Apache Software Foundation Apache HTTP Server
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow (CWE-122) in the mod_proxy_html component of Apache HTTP Server up to version 2.4.67. An untrusted backend can exploit this flaw to cause a buffer overflow, which may result in arbitrary code execution or denial of service. The issue is resolved in Apache HTTP Server version 2.4.68, which users should apply to remediate the vulnerability.
Potential Impact
Successful exploitation of this heap-based buffer overflow could allow an attacker controlling an untrusted backend to cause memory corruption within the Apache HTTP Server process. This may lead to denial of service or potentially arbitrary code execution depending on the attacker's capabilities and environment. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix for this vulnerability is available in Apache HTTP Server version 2.4.68. Users should upgrade to this version to remediate the issue. No other vendor advisory or temporary mitigations are provided. Patch status is confirmed by the vendor's recommendation to upgrade.
CVE-2026-34355: CWE-122 Heap-based Buffer Overflow in Apache Software Foundation Apache HTTP Server
Description
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow (CWE-122) in the mod_proxy_html component of Apache HTTP Server up to version 2.4.67. An untrusted backend can exploit this flaw to cause a buffer overflow, which may result in arbitrary code execution or denial of service. The issue is resolved in Apache HTTP Server version 2.4.68, which users should apply to remediate the vulnerability.
Potential Impact
Successful exploitation of this heap-based buffer overflow could allow an attacker controlling an untrusted backend to cause memory corruption within the Apache HTTP Server process. This may lead to denial of service or potentially arbitrary code execution depending on the attacker's capabilities and environment. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix for this vulnerability is available in Apache HTTP Server version 2.4.68. Users should upgrade to this version to remediate the issue. No other vendor advisory or temporary mitigations are provided. Patch status is confirmed by the vendor's recommendation to upgrade.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-03-27T11:32:12.684Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a26e45ce29bf47b501dd919
Added to database: 6/8/2026, 3:48:44 PM
Last enriched: 6/8/2026, 4:18:58 PM
Last updated: 6/9/2026, 6:39:01 AM
Views: 8
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