CVE-2026-40032 (GCVE-0-2026-40032)
Vulnerability from cvelistv5 – Published: 2026-04-08 21:35 – Updated: 2026-11-08 14:02 X_Open Source
VLAI
EPSS
VEX
Title
UAC < 3.3.0-rc1 Command Injection via Placeholder Substitution
Summary
UAC (Unix-like Artifacts Collector) before 3.3.0-rc1 contains a command injection vulnerability in the placeholder substitution and command execution pipeline where the _run_command() function passes constructed command strings directly to eval without proper sanitization. Attackers can inject shell metacharacters or command substitutions through attacker-controlled inputs including %line% values from foreach iterators and %user% / %user_home% values derived from system files to achieve arbitrary command execution with the privileges of the UAC process.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-09 19:32 UTC
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78)
Assigner
VulnCheck
CNA
References
7 references
| URL | Tags |
|---|---|
| https://github.com/tclahr/uac/pull/443 | issue-trackingpatch |
| https://github.com/tclahr/uac/commit/cb95d7166cd4… | patch |
| https://github.com/tclahr/uac/commit/50ace60e172e… | patch |
| https://github.com/tclahr/uac/commit/d0fca5e36d8d… | patch |
| https://github.com/tclahr/uac/issues/429 | issue-tracking |
| https://mobasi.ai/sentinel | vendor-advisory |
| https://www.vulncheck.com/advisories/uac-rc1-comm… | third-party-advisory |
Impacted products
Date Public
2026-03-28 00:00
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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