CVE-2026-90452
Improper certificate validation in Malcolm
- State
- Published
- Severity
- 6.0 Medium
- Published
- Sep 11, 2026
- Updated
- Oct 2, 2026
- Reserved
- Sep 11, 2026
Description
Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify the identity provider's server certificate. An attacker positioned on the network path between the proxy and the identity provider could impersonate the identity provider and issue forged authentication tokens accepted by the deployment.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.0 Medium | CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | icscert |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | icscert |
Weaknesses
- CWE-295 Improper certificate validation
Affected Products
| Product | Versions |
|---|---|
MalcolmCISA |
|
References
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