When a particular authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface directly to that interface without applying the gateway's own authentication requirement first. All access control for this administrative interface, which manages the credential store used to gate every other service in the deployment, is delegated entirely to that third-party interface's own login mechanism. Any authentication weakness in that bundled interface would compromise the credential store protecting the rest of the deployment.

Project Subscriptions

Vendors Products
Cisagov Subscribe
Malcolm Subscribe
Advisories

No advisories yet.

Fixes

Solution

The latest version of Malcolm (September 2026 or later) fixes these vulnerabilities. Affected users are encouraged to update their instance of Malcolm to the latest version.


Workaround

No workaround given by the vendor.

History

Tue, 15 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass of Authentication for Credential Store Access

Tue, 15 Sep 2026 06:30:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass of Authentication for Credential Store Access

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass Exposing Credential Store via Third‑Party Admin Interface
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 14 Sep 2026 00:45:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass Exposing Credential Store via Third‑Party Admin Interface

Sun, 13 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Cisagov
Cisagov malcolm
Vendors & Products Cisagov
Cisagov malcolm

Sun, 13 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass Exposes Credential Store

Sun, 13 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass Exposes Credential Store

Sat, 12 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass Enables Access to Credential Store

Sat, 12 Sep 2026 09:00:00 +0000

Type Values Removed Values Added
Title Reverse Proxy Bypass Enables Access to Credential Store

Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Description When a particular authentication mode is configured, the reverse proxy forwards requests for a bundled third-party administrative interface directly to that interface without applying the gateway's own authentication requirement first. All access control for this administrative interface, which manages the credential store used to gate every other service in the deployment, is delegated entirely to that third-party interface's own login mechanism. Any authentication weakness in that bundled interface would compromise the credential store protecting the rest of the deployment.
Weaknesses CWE-306
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-09-14T16:12:13.226Z

Reserved: 2026-09-11T21:00:09.301Z

Link: CVE-2026-90449

cve-icon Vulnrichment

Updated: 2026-09-14T16:12:09.197Z

cve-icon NVD

Status : Received

Published: 2026-09-11T22:16:47.087

Modified: 2026-09-14T17:17:53.673

Link: CVE-2026-90449

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T21:00:17Z

Weaknesses