CVE-2026-33768: Astro is a web framework

Q: How do I fix CVE-2026-33768?

\@astrojs\/vercel: upgrade to 10.0.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-33768 being exploited?

CVE-2026-33768 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33768 affect?

CVE-2026-33768 affects \@astrojs\/vercel. Severity is medium (CVSS 6.5). Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and x_astro_path query parameter to rewrite the internal request path, with no authentication whatsoever. On deployme

Q: How urgent is CVE-2026-33768?

Priority 40/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 6.5REMOTEUPGRADE

CVE-2026-33768 is a medium-severity flaw (CVSS 6.5) affecting \@astrojs\/vercel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and x_astro_path query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel's platform-level path restrictions entirely. The override preserves the original HTTP method and body, so this isn't limited to GET. POST, PUT, DELETE

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-441, CWE-862
Published	2026-03-24
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: astro

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-24 19:16 UTCPublished CVE record published
2026-06-17 10:38 UTCUpdated Record last modified

astro \@astrojs\/vercel UPGRADE

Affected: < 10.0.2

Fixed in: 10.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy astrojsvercel || rpm -q astrojsvercel || astrojsvercel --version

2. UPGRADE to 10.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade astrojsvercel

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade astrojsvercel

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33768?

\@astrojs\/vercel: upgrade to 10.0.2. Exact commands for each OS are on this page.

Is CVE-2026-33768 being exploited?

CVE-2026-33768 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33768 affect?

CVE-2026-33768 affects \@astrojs\/vercel. Severity is medium (CVSS 6.5). Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and x_astro_path query parameter to rewrite the internal request path, with no authentication whatsoever. On deployme

How urgent is CVE-2026-33768?

Priority 40/100. Public exploit reference; Remotely exploitable, no login, no user action

References

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