CVE-2026-31817

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

HIGH
8.5
CVSS Score
Published: March 10, 2026 at 09:08 PM UTC
Updated: June 17, 2026 at 10:34 AM UTC
1 product affected across 1 vendorOliveTin

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Severity
HIGH8.5
Exploit prediction
EPSS 0.7%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3000.11.2
Affected range stops below 3000.11.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/OliveTin/OliveTin/security/advisories/GHSA-364q-w7vh-vhpc

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-22

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