Open Redirect in Malcolm
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.
CVE-2026-90453
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90453
Malcolm
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/cisagov/Malcolm",
"vendor": "CISA",
"product": "Malcolm",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "v26.06.0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "v26.06.0"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-90453
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #8179 · Revision 1
- Added to Heist Feed
- Publisher date