CVE-2025-26803 describes a denial-of-service vulnerability in the http parser of Phusion Passenger versions 6.0.21 through 6.0.25. An unauthenticated attacker can exploit this by sending a specially crafted request with an invalid HTTP method, leading to a high-impact denial of service. The vulnerability has a CVSS score of 7.5 (High) and is remotely exploitable with low attack complexity. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.0.21, < 6.0.26CPE matchmatch criteria | cpe:2.3:a:phusion:passenger:*:*:*:*:*:*:*:* | ||
>= 6.0.21, < 6.0.26CPE match | cpe:2.3:a:phusion:passenger:*:*:*:*:open_source:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.