CVE-2026-59731
Astro is a web framework for content-driven websites. Version 6.4.7 performs authorization decisions on a partially decoded pathname after reaching the iterative URL decoder limit, while later rewrite route matching performs an additional decodeURI() operation and can resolve the request to a protected route. This issue is fixed in version 6.4.8.
- CVSS 3.1
- 8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-25)
- CWE
- CWE-647
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-vj59-8hwv-xxmv | npm | astro | >=6.4.7 <6.4.8 | 6.4.8 |
References
- https://github.com/withastro/astro/commit/27c80ea92248993e5fce94b2c26d87d611ab6785
- https://github.com/withastro/astro/pull/17109
- https://github.com/withastro/astro/releases/tag/astro@6.4.8
- https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv
- https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv