CVE-2026-31817

OliveTin's unsafe parsing of UniqueTrackingId can be used to write files

State: Published
Severity: 8.5 High
Published: Mar 10, 2026
Updated: Mar 11, 2026
Reserved: Mar 9, 2026

Description

OliveTin gives access to predefined shell commands from a web interface. Prior to 3000.11.2, when the saveLogs feature is enabled, OliveTin persists execution log entries to disk. The filename used for these log files is constructed in part from the user-supplied UniqueTrackingId field in the StartAction API request. This value is not validated or sanitized before being used in a file path, allowing an attacker to use directory traversal sequences (e.g., ../../../) to write files to arbitrary locations on the filesystem. This vulnerability is fixed in 3000.11.2.

Scores

CVSS	Score	Vector	Source
3.1	8.5 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
OliveTinOliveTin	< 3000.11.2Affected

References

https://github.com/OliveTin/OliveTin/security/advisories/GHSA-364q-w7vh-vhpc

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