CVE-2026-90453

LowCVSS 3.5/10Last modified Oct 2, 2026

Description

A file-upload handler redirects the authenticated client's browser to a URL taken directly from that same request's Referer header, without validating it against the application's own origin. This allows an authenticated attacker to craft a request that causes another user's browser to be redirected to an arbitrary external destination after completing an upload.

Metrics

CVSS 3.1 3.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-601

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
CISA	Malcolm	< v26.06.0

References

Timeline

Published: Sep 11, 2026
Last modified: Oct 2, 2026
NVD status: Awaiting Analysis

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