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TI-2026-61484 Aliases CVE-2026-90448GHSA-4chm-hjh8-jh3r

Missing Authorization in Malcolm

Priority LOW 30CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00181 7th percentileScored 2026-11-07
Fix Fixed Malcolm (CISA): v26.06.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CISAMalcolmbefore v26.06.0v26.06.0Patch availableCNA
  • Malcolm VendorCISA Affected before v26.06.0 Fixed in v26.06.0 Patch available CNA

Remediation

  • Fix · CNA Malcolm (CISA) Fixed in v26.06.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    CISA Malcolm — raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/O…

    15 records Highest priority Priority MEDIUM 1 MEDIUM, 14 LOW

    Other records, highest priority first

    • TI-2026-61492 Use of default credentials in MalcolmPriority MEDIUM 47
    • TI-2026-61480 OS Command Injection in MalcolmPriority LOW 39
    • TI-2026-61485 Missing Authentication for Critical Function in MalcolmPriority LOW 36
    Show all 15 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-90448
  2. 2026-10-03 Alias added: GHSA-4chm-hjh8-jh3r

References

Advisory 1

Other 1

  • TI-2026-69642 Server-side request forgery in Malcolm file upload component CVSS 3.1HIGH 7.1
  • TI-2026-69640 Cross-Site Request Forgery in Malcolm CVSS 3.1HIGH 7.1
  • TI-2026-69638 Compressed file uploads in Malcolm can exhaust shared disk space CVSS 3.1MEDIUM 6.5
  • TI-2026-69637 Incorrect authorization in Malcolm exposes role-restricted paths CVSS 3.1MEDIUM 5.4
  • TI-2025-24590 CISA Thorium download stream divide by zero CVSS 4.0MEDIUM 5.3
  • TI-2025-24585 CISA Thorium insecure downloaded file path validation CVSS 4.0MEDIUM 5.3
See all 33 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences