Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via… (CVE-2026-63718)
CVE-2026-63718 is a vulnerability in Apache HTTP Server affecting versions from 2.4.30 through 2.4.68. It involves inconsistent interpretation of HTTP requests leading to HTTP request/response smuggling via the mod_proxy_uwsgi module when processing crafted uwsgi responses with Transfer-Encoding headers.
AI Analysis
Technical Summary
This vulnerability arises from inconsistent parsing of HTTP requests in Apache HTTP Server's mod_proxy_uwsgi module. Specifically, a crafted uwsgi response containing Transfer-Encoding headers can cause HTTP request/response smuggling, potentially allowing an attacker to interfere with the processing of HTTP requests and responses. The affected versions are Apache HTTP Server 2.4.30 through 2.4.68.
Potential Impact
The vulnerability could allow an attacker to perform HTTP request/response smuggling attacks, which may lead to bypassing security controls, cache poisoning, or other HTTP-level manipulations. However, no active exploits are known in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor Apache HTTP Server advisories for updates addressing this issue.
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via… (CVE-2026-63718)
Description
CVE-2026-63718 is a vulnerability in Apache HTTP Server affecting versions from 2.4.30 through 2.4.68. It involves inconsistent interpretation of HTTP requests leading to HTTP request/response smuggling via the mod_proxy_uwsgi module when processing crafted uwsgi responses with Transfer-Encoding headers.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from inconsistent parsing of HTTP requests in Apache HTTP Server's mod_proxy_uwsgi module. Specifically, a crafted uwsgi response containing Transfer-Encoding headers can cause HTTP request/response smuggling, potentially allowing an attacker to interfere with the processing of HTTP requests and responses. The affected versions are Apache HTTP Server 2.4.30 through 2.4.68.
Potential Impact
The vulnerability could allow an attacker to perform HTTP request/response smuggling attacks, which may lead to bypassing security controls, cache poisoning, or other HTTP-level manipulations. However, no active exploits are known in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Users should monitor Apache HTTP Server advisories for updates addressing this issue.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9fgx-g8xr-w8vf
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-63718"]
- State
- PUBLISHED
Threat ID: 6abeb3e3a43b0b3b89ed0177
Added to database: 10/01/2026, 19:26:27 UTC
Last enriched: 10/01/2026, 19:28:35 UTC
Last updated: 10/02/2026, 03:59:01 UTC
Views: 4
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