gcdRadar
archive/Patch now/AIR-2025-0471
closedclosed 21 Aug 2025Patch now2 Disclosed vulnerabilityAI

CVE-2025-57755: claude-code-router CORS Misconfiguration API Key Exposure

claude-code-router

claude-code-router contains an improper CORS configuration vulnerability that risks exposing API keys to untrusted domains. The issue has been patched in version 1.0.34.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
8.1
EPSS
<0.01 · top 74% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
21 Aug 2025
last update
21 Aug 2025
CVE ids
CVE-2025-57755other records

Timeline · 1

  1. 21 Aug 2025CVE-2025-57755: claude-code-router is a powerful tool to route Claude Code requests to different models and customize any request.

Sources · 1

Advisories and databases

  1. 2025-08-21
    CVE-2025-57755: claude-code-router is a powerful tool to route Claude Code requests to different models and customize any request.
    NVD · nvd.nist.gov/vuln/detail/CVE-2025-57755

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerabilityData leak
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling, Anthropic
owasp llm top 10
LLM02:2025 Sensitive Information DisclosureLLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
corscredential-leak
dates
happened 21 Aug 2025 · first reported 21 Aug 2025
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2025-57755: claude-code-router CORS Misconfiguration API Key Exposure

https://gcdradar.vercel.app/incidents/cve-2025-57755-claude-code-router-cors-misconfiguration-api · AIR-2025-0471 · closed 2025-08-21

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-08-21
- AI role: Attack on AI
- Products: claude-code-router
- CVE ids: CVE-2025-57755
- CVSS: 8.1

## Summary

claude-code-router contains an improper CORS configuration vulnerability that risks exposing API keys to untrusted domains. The issue has been patched in version 1.0.34.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-08-21: CVE-2025-57755: claude-code-router is a powerful tool to route Claude Code requests to different models and customize any request. (https://nvd.nist.gov/vuln/detail/CVE-2025-57755)

## Sources

- 2025-08-21 NVD: CVE-2025-57755: claude-code-router is a powerful tool to route Claude Code requests to different models and customize any request. https://nvd.nist.gov/vuln/detail/CVE-2025-57755

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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