CVE-2026-90449

Missing Authentication for Critical Function in Malcolm

State
Published
Severity
6.9 Medium
Published
Sep 11, 2026
Updated
Oct 2, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:Nicscert
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nicscert

Weaknesses

  • CWE-306 Missing authentication for critical function

Affected Products

ProductVersions
MalcolmCISA
  • before v26.06.0Affected
  • v26.06.0Not affected

References

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