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High 8.5Published Mar 10, 2026

CVE-2026-31817OliveTin's unsafe parsing of UniqueTrackingId can be used to write files

Updated under an hour ago ()

Does this affect you?

It affects OliveTin. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
8.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
Weakness (CWE)
CWE-22
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
Mar 11, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
OliveTin OliveTin
olivetin:olivetin (from the name)
before 3000.11.2
CNA record
olivetin olivetin
olivetin:olivetin
before 3000.11.2
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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