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Liman EUVDEUVD-2026-67136

| CVE-2026-57499 CRITICAL
Improper Input Validation (CWE-20)
2026-08-27 GitHub_M
9.1
CVSS 3.1 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
9.1 CRITICAL
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
vuln.today AI
9.1 CRITICAL

Network-reachable endpoint with low-complexity injection but requires admin auth (PR:H); OS command execution escapes the web-app scope (S:C) yielding full C/I/A impact on the host.

3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Aug 27, 2026 - 18:02 EUVD
Analysis Generated
Aug 27, 2026 - 18:00 vuln.today
CVE Published
Aug 27, 2026 - 13:50 cve.org
CRITICAL 9.1

DescriptionCVE.org

Liman is open source server management software. Prior to 2.2.2 - 1103, an OS command injection vulnerability in the log rotation configuration endpoint allows an authenticated administrator to execute arbitrary operating system commands on the Liman server. The ip_address parameter is embedded directly into a shell command without sanitization, enabling shell escape via single-quote injection. This is fixed in 2.2.2 - 1103.

AnalysisAI

OS command injection in Liman server management software (limanmys/core) before version 2.2.2 - 1103 lets an authenticated administrator run arbitrary operating-system commands on the host via the log rotation configuration endpoint. The unsanitized ip_address parameter is concatenated into a shell command, allowing single-quote shell-escape to break out and execute attacker-controlled commands. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires an authenticated account with administrator privileges on the Liman web interface (CVSS PR:H) and network access to the log rotation configuration endpoint; no user interaction is needed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The signals are moderately aligned but not uniformly severe. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: 2.2.2 - 1103 - upgrade Liman (limanmys/core) to 2.2.2 - 1103 or later, per the vendor advisory GHSA-3jrp-54r2-9g63 (https://github.com/limanmys/core/security/advisories/GHSA-3jrp-54r2-9g63). … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, audit administrator access to Liman instances and restrict access to the log rotation configuration endpoint to trusted personnel only. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-67136 vulnerability details – vuln.today

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