High severityNVD Advisory· Published Oct 28, 2025· Updated Oct 29, 2025
astro allows bypass of image proxy domain validation leading to SSRF and potential XSS
CVE-2025-59837
Description
Astro is a web framework that includes an image proxy. In versions 5.13.4 and later before 5.13.10, the image proxy domain validation can be bypassed by using backslashes in the href parameter, allowing server-side requests to arbitrary URLs. This can lead to server-side request forgery (SSRF) and potentially cross-site scripting (XSS). This vulnerability exists due to an incomplete fix for CVE-2025-58179. Fixed in 5.13.10.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
astronpm | >= 5.13.4, < 5.13.10 | 5.13.10 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-qcpr-679q-rhm2ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-59837ghsaADVISORY
- github.com/withastro/astro/commit/1e2499e8ea83ebfa233a18a7499e1ccf169e56f4ghsax_refsource_MISCWEB
- github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252ghsax_refsource_MISCWEB
- github.com/withastro/astro/security/advisories/GHSA-qcpr-679q-rhm2ghsax_refsource_CONFIRMWEB
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