SEC Consult SA-20260421-0 :: Broken Access Control in Config Endpoint in LiteLLM
<p>Posted by SEC Consult Vulnerability Lab via Fulldisclosure on Apr 29</p>SEC Consult Vulnerability Lab Security Advisory &lt; 20260421-0 &gt;<br> =======================================================================<br> title: Broken Access Control in Config Endpoint<br> product: LiteLLM<br> vulnerabl...
CVSS 8 HIGH. SENTINEL APEX recommends immediate patch evaluation. Intelligence from 1 confirmed source(s).
📋 Executive Summary
This report analyzes CVE-2026-35029 affecting SecLists Multiple Targets. Composite threat score: 65/100. Intelligence corroborated across 1 source(s): fulldisclosure. CVSS base score: 8. No confirmed in-the-wild exploitation at the time of writing; prioritize on exposure, privilege, and CVSS.
⚠️ Business Impact Analysis
- ⚠️ SecLists Multiple Targets users face material security risk requiring immediate remediation
🔗 Representative Attack Path
A typical attack path for this vulnerability class, mapped to MITRE ATT&CK — a representative model to guide detection and defense, not a claim of observed activity against a specific target. Confirm specifics against the primary sources below.
| # | Phase | Attacker Action | MITRE |
|---|---|---|---|
1 |
Reconnaissance | Attacker identifies exposed Multiple Targets instances via Shodan, Censys, or targeted scanning | TA0043 |
2 |
Initial Access | Exploitation of CVE-2026-35029 in SecLists Multiple Targets | T1190 |
3 |
Persistence | Backdoor, scheduled task, or new admin account created for persistent access | T1053 |
4 |
Command & Control | Attacker establishes persistent C2 channel using HTTPS or DNS tunneling | T1071 |
5 |
Impact / Objectives | Intellectual property theft, espionage, cryptomining, or preparation for future attack stage | T1657 |
⚠ Deep Dive Analysis
This zero-day vulnerability is being actively exploited before a vendor patch is available. SENTINEL APEX intelligence shows unpatched vulnerabilities are consistently weaponized within 24-72 hours of public disclosure. Nation-state APT groups and ransomware operators actively monitor disclosures and race to weaponize.
SENTINEL APEX URGENCY: HIGH. Score: 65/100 HIGH. Patch before exploitation activity begins.
🎯 MITRE ATT&CK Mapping
| Category | Mapping |
|---|---|
| Primary Tactic | Initial Access |
| Primary Technique | T1190 — Exploit Public-Facing Application |
| Sub-Technique | T1203 — Exploitation for Client Execution |
| Weakness (CWE) | See NVD entry |
| Intel Type | 💀 ZERO-DAY |
| Source(s) | fulldisclosure |
🔴 CVE Reference
| CVE ID | Reference | Score |
|---|---|---|
| CVE-2026-35029 | NVD → | 8 |
🏷️ Indicators of Compromise — Enriched IOC Feed
Normalized IOCs with confidence scoring. Block immediately across all enforcement points. SOC Pro subscribers receive enriched IOC bundles with full attribution and STIX/TAXII feeds.
| Indicator Value | Type | Confidence | First Seen |
|---|---|---|---|
| https://www.litellm.ai/">https://www.litellm.ai/</a><br> | url | 82% | 2026-04-29 |
🔍 Detection Rules — Sigma (SIEM)
Deploy to Splunk, Elastic, Microsoft Sentinel, or QRadar. SOC Pro subscribers receive pre-compiled SIEM-native query packs updated with each pipeline run.
📡 Detection Rules — YARA (Endpoint)
Deploy to endpoint detection platforms. Enterprise subscribers receive tuned, FP-validated YARA rule packs.
🛡️ SOC Response Playbook
- 1IMMEDIATE (0-1hr): Identify all instances of Multiple Targets in your environment via CMDB/asset inventory
- 2IMMEDIATE: Block all 1 IOCs in this report at firewall, proxy, DNS, and EDR simultaneously
- 3IMMEDIATE (0-1hr): Apply vendor patch — no maintenance window exception for HIGH threats
- 4IMMEDIATE (1-2hr): If no patch available: implement WAF rules, ACLs, or network-level compensating controls
- 5SHORT-TERM (2-4hr): Deploy Sigma detection rule to SIEM — validate alert generation in test environment
- 6SHORT-TERM (4-8hr): Review logs for exploitation indicators (anomalous Multiple Targets requests, error spikes)
- 7SHORT-TERM (8-24hr): Hunt for post-exploitation: new admin accounts, scheduled tasks, lateral movement
- 8MONITOR: Subscribe to SecLists security advisories for patch updates
- 9ONGOING: Track SENTINEL APEX intelligence feed for follow-on campaigns targeting Multiple Targets
📎 Intelligence References
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Report ID: SENTINEL-CVE-2026-35029-2026-04-29 | Priority: 65/100 HIGH | Sources: 1
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