CVE-2023-25690 is a critical HTTP Request Smuggling vulnerability affecting Apache HTTP Server versions 2.4.0 through 2.4.55 when mod_proxy is enabled with specific RewriteRule or ProxyPassMatch configurations. This flaw allows attackers to bypass access controls, proxy unintended URLs, and poison caches. With a CVSS score of 9.8 (Critical), it presents a high risk due to its network-based attack vector and low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While not yet listed in CISA's KEV catalog, there is community discussion and a public Proof-of-Concept (POC) available, indicating active interest in exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.4.0, <= 2.4.55CPE matchmatch criteria | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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