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CVE-2026-31817

Olivetin path traversal

8.5 HIGHPublic exploitEPSS 0.95%
  1. Published10 Mar 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityNone
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L

Affected products

Olivetin< 3000.11.2

Remediation

Fixed in
Olivetin≥ 3000.11.2

References

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Frequently asked

Is CVE-2026-31817 being actively exploited?

CVE-2026-31817 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.95%.

How severe is CVE-2026-31817?

CVE-2026-31817 has a CVSS 3.1 base score of 8.5, rated high. EPSS estimates a 0.95% probability of exploitation.

Which products are affected by CVE-2026-31817?

Affected products include Olivetin.

How do I fix CVE-2026-31817?

Upgrade affected software to a fixed version, for example Olivetin 3000.11.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-31817 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.