What’s Vulnerable › Vulnerabilities

CVE-2026-18825: Origin validation error in the connect-xcors npm package

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-28 · updated 2026-09-30
• Weakness: CWE-346

Description

An Origin Validation Error in the middleware of the connect-xcors npm package allows an attacker to bypass origin verification and perform a cross domain authenticated request.

Affected products

• github.com/antono connect-cors: through 0.5.6

References

• https://www.thalesgroup.com/en/search/cybersecurity/cybersecurity-services/cve-2026-18825

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