CVE-2026-31817: OliveTin gives access to predefined shell commands from a web interface

Q: How do I fix CVE-2026-31817?

olivetin: upgrade to 3000.11.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-31817 being exploited?

CVE-2026-31817 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-31817 affect?

CVE-2026-31817 affects olivetin. Severity is high (CVSS 8.5). 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

Q: How urgent is CVE-2026-31817?

Priority 48/100. High severity; Public exploit reference

This month

HIGH 8.5UPGRADE

CVE-2026-31817 is a high-severity flaw (CVSS 8.5) affecting olivetin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 sequence

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 45%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-03-10
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: olivetin

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-10 22:16 UTCPublished CVE record published
2026-06-17 10:34 UTCUpdated Record last modified

olivetin olivetin UPGRADE

Affected: < 3000.11.2

Fixed in: 3000.11.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy olivetin || rpm -q olivetin || olivetin --version

2. UPGRADE to 3000.11.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade olivetin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade olivetin

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-31817?

olivetin: upgrade to 3000.11.2. Exact commands for each OS are on this page.

Is CVE-2026-31817 being exploited?

CVE-2026-31817 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-31817 affect?

CVE-2026-31817 affects olivetin. Severity is high (CVSS 8.5). 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

How urgent is CVE-2026-31817?

Priority 48/100. High severity; Public exploit reference

Related CVEs

CVE-2026-30233 MEDIUM 6.5 UPGRADE OliveTin gives access to predefined shell commands from a web interface
CVE-2026-30225 MEDIUM 5.3 UPGRADE OliveTin gives access to predefined shell commands from a web interface
CVE-2026-30224 MEDIUM 5.4 UPGRADE OliveTin gives access to predefined shell commands from a web interface
CVE-2026-30223 HIGH 8.8 UPGRADE OliveTin gives access to predefined shell commands from a web interface
CVE-2026-28790 HIGH 7.5 UPGRADE OliveTin gives access to predefined shell commands from a web interface

References

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