Quick answers
- Is This vulnerability exploited in the wild?
- No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.
- How severe is This vulnerability?
- Low severity, with a CVSS score of 3.1, published 5 May 2026.
- Which products and versions are affected?
- EvoMap Evolver <= 1.70.0-beta.4; @evomap/evolver (npm) SEMVER:introduced=0,fixed=1.70.0-beta.5.
- Is there a fix for This vulnerability?
- Yes. @evomap/evolver (npm): upgrade to 1.70.0-beta.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is This vulnerability attacked?
- It is attacked over the network, in a software library.
- Am I affected?
- Check whether you run EvoMap Evolver or @evomap/evolver (npm) 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.
How to fix
- @evomap/evolver (npm): upgrade to 1.70.0-beta.5 or later
npm install @evomap/evolver@1.70.0-beta.5
Technical details
The vulnerability is a path traversal in the default (non-`--out`) branch of the `evolver fetch` subcommand. The `safeId` sanitization regex permits dot characters ([^a-zA-Z0-9_\-\.]), so a skill_id of `..` passes through unchanged. Combined with `path.join('.', 'skills', '..')` which collapses to `.` (the current working directory), files are written to cwd instead of the intended `./skills/` subdirectory. The traversal check (path.relative verification) only applies when `--out` is explicitly used, leaving the documented default case vulnerable. An attacker-controlled Hub can supply `bundled_files` containing JavaScript (.js), JSON (.json), shell (.sh), or Python (.py) files that overwrite legitimate project files like `index.js` or `package.json`. The response is trusted without signature verification, and any Hub participant can set a skill_id to `..`. The vulnerability allows arbitrary code execution on next invocation of the evolver.
Affected products
- EvoMap evolver <= 1.70.0-beta.4
Timeline
- 2026-05-05: disclosed
- 2026-04-27: patched: Patched in version 1.70.0-beta.5