Auth bypass in Olivetin
CVE-2026-67439
OliveTin gives safe and simple access to predefined shell commands from a web interface. Prior to 3000.17.0, the service/internal/api/api.go StartActionAndWait and StartActionByGetAndWait endpoints return full LogEntry output after execution without enforcing the logs permission, allowing a user with exec permission but logs:false to read action output. This issue is fixed in version 3000.17.0.
Vulnerability class: Broken Access Control
EPSS: 0.003 (16.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Olivetin — versions < 3000.17.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-67439?
- CVE-2026-67439 is a medium-severity vulnerability in Olivetin, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-07-29.
- How severe is CVE-2026-67439?
- Medium severity. CVSS v3 base score is 4.3 out of 10.