Arbitrary command execution via unsanitized shell check
Published May 27, 2026 · Updated May 27, 2026
Command injection in uniget CLI before 0.27.1 allows attackers to execute arbitrary shell commands through malicious metadata. RunVersionCheck passes the metadata-derived Tool.Check value to /bin/bash -c, which interprets embedded shell metacharacters instead of treating the value as data. A user must process attacker-controlled metadata through an affected CLI operation, after which injected commands run with that user's privileges.
Summary
What happened
Command injection in uniget CLI before 0.27.1 allows attackers to execute arbitrary shell commands through malicious metadata. RunVersionCheck passes the metadata-derived Tool.Check value to /bin/bash -c, which interprets embedded shell metacharacters instead of treating the value as data. A user must process attacker-controlled metadata through an affected CLI operation, after which injected commands run with that user's privileges.
The record
- CVE
- CVE-2026-45152
- Published
- May 27, 2026
- Updated
- May 27, 2026
- Vendor
- uniget
- Product
- uniget CLI
- Classifications
- CWE-78, T1059.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 27, 2026CVE publishedPublication date reported by the CVE source.
- May 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.27.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GHSA-qqq4-5773-pmw5 metadata command-injection proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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