CVE-2026-59386
Tenable Plugin
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AI Threat Summary
CVE-2026-59386 is a moderate vulnerability with a CVSS score of 6.5 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
Description
A SpaceSupporter could improperly modify an application's start command and buildpack—actions requiring SpaceDeveloper privileges. This privilege escalation enables unauthorized retrieval of service credentials through malicious start commands or custom buildpacks.
Attack Chain
Attacker has low-privilege local access (e.g., via phishing or compromised service account)
Attacker exploits CVE-2026-59386 to escalate from low-privilege user to root/SYSTEM/admin
Elevated privileges used to disable security controls, clear logs, and establish persistence
Full system compromise achieved; attacker can install ransomware, exfiltrate all data, or pivot
MITRE ATT&CK Techniques
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against application endpoint — monitor access logs for anomalous params |
Remediation
Quick Facts
| CVE ID | CVE-2026-59386 |
| CVSS Score | 6.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| Published | 2026-10-30 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |