CVE-2026-90448

Missing Authorization in Malcolm

State
Published
Severity
7.1 High
Published
Sep 11, 2026
Updated
Oct 2, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

A deployment mode intended to expose only read access to stored data proxies a set of application programming interface routes without restricting which request methods are allowed. One such route accepts a request that creates or overwrites a stored record, including an attacker-chosen identifier, using the application's own elevated backend credentials. This allows an authenticated user on a deployment intended to be read-only to forge or overwrite stored records that should not be modifiable in that deployment mode.

Scores

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

Weaknesses

Affected Products

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

References

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