Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/withastro/astro/commit/27c80ea92248993e5fce94b2c26d87d611ab67
- https://github.com/withastro/astro/pull/17109
- https://github.com/withastro/astro/releases/tag/[email protected]
- https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv
- https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv
FAQ
What is CVE-2026-59731?
CVE-2026-59731 is a vulnerability with a CVSS score of 8.2 (HIGH). 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...
How severe is CVE-2026-59731?
CVE-2026-59731 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-59731?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.