github.com
https://github.com/withastro/astro CVE-2026-41322
MEDIUM
@astrojs/node: Cache Poisoning due to incorrect error handling when if-match header is malformed
Record summary
CVE-2026-41322 has a selected CVSS score of 5.3 (medium).
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationPoC
AutomatableYes
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Apr 25, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
| CVE List | < 10.0.5 | affected | |
@astrojs/nodeBrowse npm / @astrojs/node | GitHub Advisory | Before 10.0.5 · Fixed in 10.0.5 | affected |
References
3github.comConfirmation
https://github.com/withastro/astro/security/advisories/GHSA-c57f-mm3j-27q9 nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-41322