Medium 6.5Published Nov 13, 2025

CVE-2025-64525Astro: URL manipulation via unsanitized headers leads to path-based middleware protections bypass, potential SSRF/cache-poisoning, CVE-2025-61925 bypass

Updated under an hour ago (Oct 28, 2026, 3:23 AM ET)

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Every CVE for withastro astro

Exploited in the last 30 days

Astro is a web framework. In Astro versions 2.16.0 up to but excluding 5.15.5 which utilizeon-demand rendering, request headers `x-forwarded-proto` and `x-forwarded-port` are insecurely used, without sanitization, to build the URL. This has several consequences, the most important of which are: middleware-based protected route bypass (only via `x-forwarded-proto`), DoS via cache poisoning (if a CDN is present), SSRF (only via `x-forwarded-proto`), URL pollution (potential SXSS, if a CDN is present), and WAF bypass. Version 5.15.5 contains a patch.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Nov 13, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

withastro astro withastro:astro (from the name)	from 2.16.0, < 5.15.5	CNA record
astro astro astro:astro	from 2.16.0 before 5.15.5	NVD

References

References

https://github.com/withastro/astro/security/advisories/GHSA-hr2q-hp5q-x767	x-refsource-confirm, exploit, third-party-advisory
https://github.com/withastro/astro/commit/dafbb1ba29912099c4faff1440033edc768af8b4	x-refsource-misc, patch
https://github.com/withastro/astro/blob/970ac0f51172e1e6bff4440516a851e725ac3097/packages/astro/src/core/app/node.ts#L121	x-refsource-misc, product
https://github.com/withastro/astro/blob/970ac0f51172e1e6bff4440516a851e725ac3097/packages/astro/src/core/app/node.ts#L97	x-refsource-misc, product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.