HTTP response splitting vulnerability in multiple Apache HTTP Server modules with untrusted or compromised backend servers.
This issue affects Apache HTTP Server: from through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Metrics
Affected Vendors & Products
References
History
Mon, 04 May 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | NVD-CWE-Other | |
| CPEs | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
Mon, 04 May 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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Mon, 04 May 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apache
Apache http Server |
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| Vendors & Products |
Apache
Apache http Server |
Mon, 04 May 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Mon, 04 May 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | HTTP response splitting vulnerability in multiple Apache HTTP Server modules with untrusted or compromised backend servers. This issue affects Apache HTTP Server: from through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue. | |
| Title | Apache HTTP Server: multiple modules: HTTP response splitting forwarding malicious status line | |
| Weaknesses | CWE-443 | |
| References |
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-05-04T17:32:49.282Z
Reserved: 2026-03-20T17:29:39.696Z
Link: CVE-2026-33523
Updated: 2026-05-04T17:32:49.282Z
Status : Analyzed
Published: 2026-05-04T15:16:04.227
Modified: 2026-05-04T20:21:15.483
Link: CVE-2026-33523
No data.
OpenCVE Enrichment
Updated: 2026-05-04T22:00:11Z