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.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3942ab86fd advisory.

    See https://github.com/jupytext/jupytext/blob/main/CHANGELOG.md for changes in versions 1.19.5 and 1.19.6.
    For this update, a patch has been applied that reverses the jupyterlab  jupyter-builder change for     Fedora releases  45, since jupyter-builder is only available in F46 and later.  Many CVEs have been     fixed in this release.


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-73423)

ID	Name	Product	Family	Type	Severity
365513	Fedora 43 : python-jupytext (2026-3942ab86fd)	Nessus	Fedora Local Security Checks	Local	high
445918	SCA: security update for astro (GHSA-8mv7-9c27-98vc)	Tenable Cloud Security	SCA Checks	Local	medium
445918	SCA: security update for astro (GHSA-8mv7-9c27-98vc)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium

Detections

Analytics

CVE-2026-73423

medium

Tenable Plugins

high

medium

medium