SB2026022332 - Open redirect in KoaJS Koa
Published: February 23, 2026
Security Bulletin ID
SB2026022332
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Open redirect (CVE-ID: CVE-2025-8129)
The vulnerability allows a remote user to redirect victims to arbitrary URL.
The vulnerability exists due to improper sanitization of user-supplied data in the function back in the library lib/response.js of the component HTTP Header Handler. A remote user can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
Remediation
Install update from vendor's website.