Vulnerability · Published Oct 28, 2026 · Assigned by GitHub_M
CVE-2026-59172Joker linter executed project-local .jokerd/linter.* files during linting
High 7.8
In plain English
A high-severity security flaw in joker from candid82. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Joker is a small Clojure interpreter, linter and formatter written in Go. Prior to 1.8.2, `joker --lint <file>` walks upward from the linted file to locate a `.jokerd/` directory and executes matching `linter.*` files before linting. Those files contain executable Joker/Clojure code, so linting a file inside an untrusted repository can execute repository-supplied code with the linter user's privileges. Editor integrations and CI jobs that automatically lint checked-out source can trigger this behavior. The patch stops executing project-local linter customizations and loads executable customization only from the user's home directory. This issue is fixed in version 1.8.2.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/candid82/joker | 1.8.2 | GHSA-m835-3cm9-rggg |
| Go | github.com/candid82/joker | 1.8.2 | GO-2026-6450 |
Affected products (as reported)
Weakness: CWE-829 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://github.com/candid82/joker/security/advisories/GHSA-m835-3cm9-rggg x_refsource_CONFIRM
- https://github.com/candid82/joker/commit/f207521ef8abc22f30740591c3de5062c1aa628c x_refsource_MISC
- https://github.com/candid82/joker/tree/v1.8.2 x_refsource_MISC