CVE-2026-41322 PUBLISHED

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

Assigner: GitHub_M
Reserved: 20.04.2026 Published: 24.04.2026 Updated: 25.04.2026

@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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 5.3

Product Status

Vendor withastro
Product astro
Versions
  • Version < 10.0.5 is affected

References

Problem Types

  • CWE-525: Use of Web Browser Cache Containing Sensitive Information CWE