CVE-2026-90453
Open Redirect in Malcolm
CVSS Score
3.5
EPSS Score
0.4%
EPSS Percentile
30th
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.
| CWE | CWE-601 |
| Vendor | cisa |
| Product | malcolm |
| Published | Sep 11, 2026 |
| Last Updated | Oct 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
CISA / Malcolm
0 < v26.06.0