CVE-2026-30233 is a medium-severity missing authorization vulnerability in github.com/OliveTin/OliveTin (go), affecting versions < 0.0.0-20260305082002-d7962710e7c4. It is fixed in 0.0.0-20260305082002-d7962710e7c4.
Summary An authorization flaw in OliveTin allows authenticated users with view: false permission to enumerate action bindings and metadata via dashboard and API endpoints. Although execution (exec) may be correctly denied, the backend does not enforce IsAllowedView() when constructing dashboard and action binding responses. As a result, restricted users can retrieve action titles, IDs, icons, and argument metadata. Details OliveTin defines a view permission in its ACL model (acl.go). However, this permission is not consistently enforced when building dashboard and action metadata responses. Relevant source locations: dashboards.go (around line 120, 132) apiActions.go (around line 122) acl.go (around line 125) api.go (around line 430) Dashboard building logic: Why vulnerable: IsAllowedView() exists but is not enforced when building dashboard/action metadata. Users with view:false still receive action titles/icons/argument metadata (with canExec:false). PoC Configure OliveTin with a restricted user: Create config.yaml: Start OliveTin with this configuration Login as low-privilege user and capture session ID: Verify the web UI respects view:false (optional but illustrative): Open http://localhost:1337 in a browser logged in as low user - the "Secret Action" should NOT appear in the UI. Test 1: GetDashboard endpoint leaks action metadata: Expected behavior (if fixed): Empty result or no matching action Observed behavior (vulnerable): Test 2: GetActionBinding endpoint directly exposes action details: Expected behavior (if fixed): HTTP 403 Permission Denied Observed behavior (vulnerable):
The application does not perform an authorization check before performing a sensitive operation. Typical impact: unauthorized access to restricted functionality or data.
CVE-2026-30233 has a CVSS score of 6.5 (Medium). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.
A fixed version is available (0.0.0-20260305082002-d7962710e7c4). Upgrading removes the vulnerable code path.
go
github.com/OliveTin/OliveTin (< 0.0.0-20260305082002-d7962710e7c4)github.com/OliveTin/OliveTin → 0.0.0-20260305082002-d7962710e7c4 (go)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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Already deployed Kodem? See CVE-2026-30233 in your environment →Upgrade github.com/OliveTin/OliveTin to 0.0.0-20260305082002-d7962710e7c4 or later to resolve this vulnerability.
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
CVE-2026-30233 is a medium-severity missing authorization vulnerability in github.com/OliveTin/OliveTin (go), affecting versions < 0.0.0-20260305082002-d7962710e7c4. It is fixed in 0.0.0-20260305082002-d7962710e7c4. The application does not perform an authorization check before performing a sensitive operation.
CVE-2026-30233 has a CVSS score of 6.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
github.com/OliveTin/OliveTin (go) versions < 0.0.0-20260305082002-d7962710e7c4 is affected.
Yes. CVE-2026-30233 is fixed in 0.0.0-20260305082002-d7962710e7c4. Upgrade to this version or later.
Whether CVE-2026-30233 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
Upgrade github.com/OliveTin/OliveTin to 0.0.0-20260305082002-d7962710e7c4 or later.