CVE-2020-1927 is a medium-severity vulnerability affecting Apache HTTP Server versions 2.4.0 to 2.4.41, as well as various distributions like Debian and Fedora. It allows attackers to bypass intended self-referential redirects configured with mod_rewrite by using encoded newlines, leading to redirection to an unexpected URL within the request. The vulnerability has a CVSS score of 6.1, indicating a network-based attack with low complexity, requiring user interaction, and potentially leading to low confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, with only one article mentioning it in relation to a different CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.4.0, <= 2.4.41CPE matchmatch criteria | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | ||
31CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | ||
32CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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Dec 10, 2025httpd: mod_rewrite configurations vulnerable to open redirect
Apr 1, 2020Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project