CVE-2026-67438

MEDIUM 6.6

OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check

CVSS Score

6.6

EPSS Score

0.0%

EPSS Percentile

0th

OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c command string and enabling OS command injection. This issue is fixed in version 3000.17.0.

CWE	CWE-78
Vendor	olivetin
Product	olivetin
Published	Jul 29, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

OliveTin / OliveTin

>= 3000.2.0, < 3000.17.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65 github.com: https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232 github.com: https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0