CVE-2026-9203

Status: AnalyzedHigh (8.5)—

A server-side request forgery vulnerability in Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an authenticated user with low-privileged roles to bypass protections for cloud instance metadata endpoints. Successful exploitation can disclose cloud credentials and compromise cloud resources accessible to the host instance.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Base score: 8.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.34%
Percentile among all scored CVEs: 25
Score date: 10/4/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement85 %
Primary impactT1090 Proxycommand and control90 %
Secondary impactT1078 Valid Accountsstealth · persistence · privilege escalation · initial access80 %
Secondary impactT1552.005 Cloud Instance Metadata APIcredential access85 %

SSRF (CWE-918) en servicio remoto (MarkLogic) con PR:L permite actuar como proxy hacia metadatos de cloud, exfiltrando credenciales; impacto proxy/SSRF (T1090) + obtención de credenciales (T1552.005, T1078).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management Filter Network Traffic Disable or Remove Feature or Program Application Developer Guidance Active Directory Configuration Vulnerability Scanning

Affected technologies (1)

Progress — Marklogic Server

CWEs

CWE-918

References

https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-August-2026

Raw JSON (NVD)

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