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Medium 5.3Published Apr 24, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects withastro astro. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

@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.

CVSS
5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE)
CWE-525
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
Deferred
Record last updated
Apr 24, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
withastro astro
withastro:astro (from the name)
before 10.0.5
CNA record

References

References

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.

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