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CVE-2026-90455: CWE-1395 Dependency on vulnerable third-party component in CISA Malcolm

0
Medium
VulnerabilityCVE-2026-90455cvecve-2026-90455cwe-1395
Published: 09/11/2026 (09/11/2026, 21:51:59 UTC)
Source: CVE Database V5
Vendor/Project: CISA
Product: Malcolm

Description

A prior update that raised a bundled HTTP client library to a version remediating known vulnerabilities was later reverted, reintroducing the earlier, vulnerable version into a log-processing component. The only code path in that component using the library issues a request to a single fixed, trusted vendor URL at initialization and does not process attacker-controlled input through the library, limiting practical exploitability of the reintroduced version in this context.

CVSS v4.0

Score 6.3medium

Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected software

CISA

Malcolm

Affected versions
>=0 <26.06.0
GitHub Actionsmore threats →cve
Malcolm
pkg:github/Malcolm
Affected versions
>=0 <26.06.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 22:18:31 UTC

Technical Analysis

This vulnerability arises from a regression where a prior update that upgraded a bundled HTTP client library to a secure version was reverted, reintroducing an earlier vulnerable version. The vulnerable library is used solely in a log-processing component to send a request to a single fixed, trusted vendor URL at initialization. No attacker-controlled input is processed through this library in this context, which limits the practical exploitability of the vulnerability.

Potential Impact

The impact is limited due to the constrained use of the vulnerable library. Since the only code path using the vulnerable HTTP client library issues requests to a fixed, trusted vendor URL and does not handle attacker-controlled input, the risk of exploitation is minimal. There are no known exploits in the wild.

Mitigation Recommendations

No official patch or remediation is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Given the limited exploitability, immediate urgent action may not be required, but monitoring vendor updates for a fix is recommended.

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Technical Details

Data Version
5.2
Assigner Short Name
icscert
Date Reserved
2026-09-11T21:00:09.301Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6aa47a7455bf5e2cf581b19c

Added to database: 09/11/2026, 22:02:28 UTC

Last enriched: 09/11/2026, 22:18:31 UTC

Last updated: 09/11/2026, 23:50:37 UTC

Views: 5

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