CVE-2025-8129 - CVE House
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Status published Medium CVE-2025-8129

KoaJS Koa HTTP Header response.js back redirect

Vulnerability Description

A vulnerability, which was classified as problematic, was found in KoaJS Koa up to 3.0.0. Affected is the function back in the library lib/response.js of the component HTTP Header Handler. The manipulation of the argument Referrer leads to open redirect. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • ZAST.AI (VulDB User)

Affected Vendor

Affected Software

Koa
Vulnerable Versions:
3.0

Timeline

Official Publish: July 25th, 2025
Last Modified: July 25th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

Weaknesses (CWE)