Read the docs
TI-2026-29923 Aliases CVE-2026-41322GHSA-c57f-mm3j-27q9

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

Priority MEDIUM 63CWE-525Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

@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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00286 21st percentileScored 2026-11-07
Fix Fixed astro (withastro): 10.0.5@astrojs/node (npm): 10.0.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
withastroastrobefore 10.0.510.0.5Patch availableCNA
—@astrojs/node (npm)before 10.0.510.0.5Patch availableGHSA-c57f-mm3j-27q9
  • astro Vendorwithastro Affected before 10.0.5 Fixed in 10.0.5 Patch available CNA
  • @astrojs/node (npm) Vendor— Affected before 10.0.5 Fixed in 10.0.5 Patch available GHSA-c57f-mm3j-27q9

Remediation

  • Fix · CNA astro (withastro) Fixed in 10.0.5
  • Fix · GHSA-c57f-mm3j-27q9 @astrojs/node (npm) Fixed in 10.0.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41322
  2. 2026-10-03 Alias added: GHSA-c57f-mm3j-27q9

References

Advisory 1

Other 2

  • TI-2026-26147 Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path` CVSS 3.1CRITICAL 9.1
  • TI-2026-42600 Astro 6.4.7 Authorization Bypass via Decode Iteration Limit and Rewrite Path Canonicalization Mismatch CVSS 3.1HIGH 8.2
  • TI-2024-37142 Server source code is exposed to the public if sourcemaps are enabled CVSS 4.0HIGH 7.8
  • TI-2025-35987 Astro Cloudflare adapter is vulnerable to Server-Side Request Forgery via /_image endpoint CVSS 3.1HIGH 7.2
  • TI-2025-34958 Unauthorized third-party images in Astro’s _image endpoint CVSS 4.0MEDIUM 6.9
  • TI-2026-51542 Astro: Unauthenticated path override in the @astrojs/vercel ISR function CVSS 3.1MEDIUM 6.5
See all 43 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences