CVE-2026-59731

Published: Jul 8, 2026Modified: Jul 9, 2026Deferred

8.2

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploitability: 3.9 / Impact: 4.2

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-647

Use of Non-Canonical URL Paths for Authorization Decisions

The product defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical. This can allow a non-canonical URL to bypass the authorization.

References (5)

https://github.com/withastro/astro/commit/27c80ea92248993e5fce94b2c26d87d611ab6785

Source: security-advisories@github.com

https://github.com/withastro/astro/pull/17109

Source: security-advisories@github.com

https://github.com/withastro/astro/releases/tag/astro@6.4.8

Source: security-advisories@github.com

https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv

Source: security-advisories@github.com

https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.