CVE-2026-19336 Pimzino spec-workflow-mcp approvals.ts ApprovalStorage.createApproval path traversal
Local attackers can exploit path traversal in ApprovalStorage.createApproval to read or modify files outside the intended directory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19336?
CVE-2026-19336 is a medium-severity path traversal vulnerability in Pimzino spec-workflow-mcp, published on 9 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in Pimzino spec-workflow-mcp up to 2.2.6. This issue affects the function ApprovalStorage.createApproval of the file src/tools/approvals.ts. Performing a manipulation of the argument categoryName results in path traversal. The attack is only possible with local access. Upgrading to version 2.2.7 is capable of addressing this issue. The patch is named 9c7a7839e690bb4543f0e7481b5740d23808e5fe. It is advisable to upgrade the affected component.
Weakness: CWE-22
Which versions are affected by CVE-2026-19336?
How do I fix CVE-2026-19336?
No fix has been published for CVE-2026-19336 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-19336 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19336 exists.
Sources
Also known as GHSA-xgwr-j735-3wg4.