PT-2025-34244 · Anthropic · Claude-Code-Router

Ttttmr · Published 2025-08-21 · Updated 2025-08-22 · CVE-2025-57755

Positive Technologies (AI Summary)

CVSS v4.0

8.1

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions: claude-code-router versions prior to 1.0.34

Description: claude-code-router is susceptible to a Cross-Origin Resource Sharing (CORS) misconfiguration. This allows potential exposure of user API Keys or equivalent credentials to unauthorized domains. Exploitation could lead to credential theft, account abuse, quota exhaustion, or access to sensitive data.

Recommendations: Update to version 1.0.34 or later.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

CWE-942

Related Identifiers

CVE-2025-57755

GHSA-8HMM-4CRW-VM2C

Affected Products

Claude-Code-Router

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/57xxx/CVE-2025-57755.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-57755 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-57755 · Security Note
• https://osv.dev/vulnerability/GHSA-8hmm-4crw-vm2c · Vendor Advisory
• https://github.com/musistudio/claude-code-router/security/advisories/GHSA-8hmm-4crw-vm2c · Note
• https://github.com/musistudio/claude-code-router/issues/549 · Note
• https://github.com/musistudio/claude-code-router · Note
• https://twitter.com/CVEnew/status/1958603390776483969 · Twitter Post
• https://t.me/CVEtracker/30602 · Telegram Post
• https://twitter.com/CCBalert/status/1958905206764089514 · Twitter Post