CVE-2026-25545 is a Server-Side Request Forgery (SSRF) vulnerability affecting Astro web framework versions prior to 9.5.4, specifically impacting Server-Side Rendered pages with custom error pages. An attacker can manipulate the Host header to redirect internal requests to arbitrary internal URLs, potentially allowing access to cloud metadata or other internal network services. Rated 8.6 HIGH on CVSS, this vulnerability has a network attack vector and low attack complexity, with high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 9.5.4CPE matchmatch criteria | cpe:2.3:a:astro:\@astrojs\/node:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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.