CVE-2026-73423
published 2026-08-12CVE-2026-73423: Astro is a web framework for content-driven websites. From 7.0.0 until 7.0.6, the composable astro/hono pipeline installs security.checkOrigin only through the…
PriorityP429medium5.1CVSS 4.0
AVNACLATNPRNUIAVCNVINVANSCNSILSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.18%
8.1th percentile
Astro is a web framework for content-driven websites. From 7.0.0 until 7.0.6, the composable astro/hono pipeline installs security.checkOrigin only through the middleware() primitive, while actions() and pages() can dispatch to user code independently. Mounting actions() before middleware(), as in the examples/advanced-routing example and Cloudflare Hono documentation, allows cross-origin form-encoded action requests to execute before the origin check, and using pages() without middleware() drops the check for on-demand endpoints and pages. The flaw enables blind write-only cross-site request forgery using the victim's cookies against ActionHandler.handle and PagesHandler.handleWithErrorFallback when manifest.checkOrigin is enabled; the attacker can trigger a state-mutating action or endpoint handler but cannot read the cross-origin response. The default non-composable astro() pipeline is not affected. This issue is fixed in version 7.0.6.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| rhoai | odh-feature-server-rhel9 | — | — |
| withastro | astro | — | — |
CVSS provenance
nvdv4.05.1MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vendor_redhat5.1MEDIUM
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Red Hat
astro: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline
vendor_redhat·2026-08-12·CVSS 5.1
CVE-2026-73423 [MEDIUM] CWE-940 astro: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline
astro: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline
Astro is a web framework for content-driven websites. From 7.0.0 until 7.0.6, the composable astro/hono pipeline installs security.checkOrigin only through the middleware() primitive, while actions() and pages() can dispatch to user code independently. Mounting actions() before middleware(), as in the examples/advanced-routing example and Cloudflare Hono documentation, allows cross-origin form-encoded action requests to execute before the origin check, and using pages() without middleware() drops the check for on-demand endpoints and pages. The flaw enables blind write-only cross-site request forgery using the victim's cookies against ActionHandler.handle and PagesHandler.handleWithErrorFal
VulDB
withastro Astro up to 7.0.5 Hono Pipeline ActionHandler.handle cross-site request forgery
vuldb·2026-08-12·CVSS 5.1
CVE-2026-73423 [MEDIUM] withastro Astro up to 7.0.5 Hono Pipeline ActionHandler.handle cross-site request forgery
A vulnerability marked as problematic has been reported in withastro Astro up to 7.0.5. Affected is the function ActionHandler.handle of the component Hono Pipeline. The manipulation leads to cross-site request forgery.
This vulnerability is uniquely identified as CVE-2026-73423. The attack is possible to be carried out remotely. No exploit exists.
It is suggested to upgrade the affected component.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-73423 python-jupytext: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline [fedora-all]
bugzilla·2026-08-25·CVSS 5.1
CVE-2026-73423 [MEDIUM] CVE-2026-73423 python-jupytext: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline [fedora-all]
CVE-2026-73423 python-jupytext: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Astro is a web framework for content-driven websites. From 7.0.0 until 7.0.6, the composable astro/hono pipeline installs security.checkOrigin only through the middleware() primitive, while actions() and pages() can dispatch to user code independently. Mounting actions() before middleware(), as in the examples/advanced-routing example and Cloudflare Hono documentation, allows cross-origin form-encoded action requests to execute befo
Bugzilla
CVE-2026-73423 astro: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline
bugzilla·2026-08-12·CVSS 5.1
CVE-2026-73423 [MEDIUM] CVE-2026-73423 astro: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline
CVE-2026-73423 astro: Astro: Cross-site Request Forgery (CSRF) due to origin check bypass in `astro/hono` pipeline
Astro is a web framework for content-driven websites. From 7.0.0 until 7.0.6, the composable astro/hono pipeline installs security.checkOrigin only through the middleware() primitive, while actions() and pages() can dispatch to user code independently. Mounting actions() before middleware(), as in the examples/advanced-routing example and Cloudflare Hono documentation, allows cross-origin form-encoded action requests to execute before the origin check, and using pages() without middleware() drops the check for on-demand endpoints and pages. The flaw enables blind write-only cross-site request forgery using the victim's cookies against ActionHandler.handle and PagesHandler.han
2026-08-12
Published