Quick answers
- Is CVE-2026-73040 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73040 being exploited in the wild.
- How severe is CVE-2026-73040?
- High severity, with a CVSS score of 8.8, published 20 August 2026.
- Which products and versions are affected?
- Louis Lam Dockge before 1.5.1.
- Is there a fix for CVE-2026-73040?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-73040 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-73040?
- Check whether you run Louis Lam Dockge at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a path traversal flaw in stack name validation. The validate() function in backend/stack.ts enforces an allow-list regex (^[a-z0-9_-]+$) only on the write path (save() method), but the getter and Stack.getStack() lack checks and construct file paths using unsanitized stack names via path.join(). Socket handlers in docker-socket-handler.ts authenticate the caller but pass the stack name directly to Stack.getStack without validation. An attacker can inject traversal sequences (e.g., "../../../") to read or delete files outside the managed stacks directory. Exploitation requires authentication unless disableAuth is enabled. The impact is limited to disclosure of .env and Compose files and deletion of directories containing valid Compose files.
Affected products
- Louis Lam Dockge before 1.5.1
Timeline
- 2026-08-20: disclosed