CVE-2026-42076 Evolver: Command Injection via `execSync` in `_extractLLM()` function allows Remote Code Execution
Attackers can execute arbitrary shell commands on the server via unsanitized input in the _extractLLM function, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-42076?
CVE-2026-42076 is a critical command injection vulnerability in EvoMap evolver, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Evolver is a GEP-powered self-evolving engine for AI agents. Prior to version 1.69.3, a command injection vulnerability in the _extractLLM() function allows attackers to execute arbitrary shell commands on the server. The function constructs a curl command using string concatenation and passes it to execSync() without proper sanitization, enabling remote code execution when the corpus parameter contains shell metacharacters. This issue has been patched in version 1.69.3.
Weakness: CWE-78
Which versions are affected by CVE-2026-42076?
2 open source packages ship an affected version, including @evomap/evolver.
| Package | Affected | Fixed in |
|---|---|---|
@evomap/evolver npm | All versions | 1.69.3 |
@evomap/evolver npm | All versions | 1.69.3 |
How do I fix CVE-2026-42076?
Upgrade @evomap/evolver to 1.69.3 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-42076 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42076 exists.
Sources
Also known as GHSA-j5w5-568x-rq53.