What’s Vulnerable › Vulnerabilities

CVE-2026-41322: @astrojs/node: Cache Poisoning due to incorrect error handling when if-match header is malformed

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-24 · updated 2026-10-26
• Weakness: CWE-525

Description

@astrojs/node allows Astro to deploy your SSR site to Node targets. Prior to 10.0.5, requesting a static js/css resources from _astro path with an incorrect/malformed if-match header returns a 500 error with a one year cache lifetime instead of 412 in some cases. This has the effect that all subsequent requests to that file, regardless of if-match header will be served a 5xx error instead of the file until the cache expires. This vulnerability is fixed in 10.0.5.

Affected products

• withastro astro: before 10.0.5

References

• https://github.com/withastro/astro/security/advisories/GHSA-c57f-mm3j-27q9
• https://github.com/withastro/astro/security/advisories/GHSA-c57f-mm3j-27q9

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