CVE Tools
Sign in

CVE-2026-33768

Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Published: Mar 24, 2026Updated: Mar 26, 2026 Sources: CVE List NVDCWE-441
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.3%
Top 75.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-441CWE-862

Affected Products

\@astrojs\/vercelastro
Mixed
OSS Libraries / web-framework
astrowithastro
Library
OSS Libraries / web-framework
astrooss-projectUSOSS Librariesaka @astrojs/node, @astrojs/cloudflare
withastrooss-projectOSS Librariesaka astro, @astrojs/cloudflare

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/withastro/astro/commit/335a204161f5a7293c128db570901d4f8639c6ed
github.com
https://github.com/withastro/astro/pull/15959
github.com
https://github.com/withastro/astro/releases/tag/%40astrojs%2Fvercel%4010.0.2
github.com
and 1 more references View all →

Timeline

Published
Mar 24, 2026
Last Updated
Mar 26, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-33768 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows