Is CVE-2026-33768 in the CISA KEV catalog?

No. CVE-2026-33768 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-33768?

CVE-2026-33768 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-33768?

CVE-2026-33768 has an EPSS score of 0.33% (25th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-33768?

Upgrade \@astrojs\/vercel to 10.0.2 or later.

CVE & CISA-KEV Catalog

CVE-2026-33768

MEDIUM

6.5

CVSS v3

NVD

Description

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 all land on the rewritten path. A Firewall rule blocking /admin/* does nothing when the request comes in as POST /api/health?x_astro_path=/admin/delete-user. This issue has been patched in version 10.0.2.

CWE-441 CWE-862Missing Authorization

How to fix

Remediation Available

\@astrojs\/vercelNVD

Affected:< 10.0.2Fixed in:10.0.2CVE-2026-33768derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

0.33%probability of exploitation in 30 days

25thpercentile

Low risk: more likely to be exploited than 25% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Issue Tracking1

github.com

Release Notes1

github.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-26.