CVE-2026-90445

Path Traversal 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

An interface that accepts file uploads from authenticated users extracts the contents of uploaded archives without validating that extracted file paths remain within the intended destination directory. This allows an authenticated attacker to craft an archive whose entries traverse outside the destination directory, causing the extraction process to write files to arbitrary locations with the privileges of that process. This could allow an attacker to inject fabricated records into the system's stored data or tamper with application configuration.

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

  • CWE-22 Improper limitation of a pathname to a restricted directory ('path traversal')

Affected Products

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

References

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