CVE-2026-22244

HighPublic PoCRCE

Published: 08 January 2026

Published

08 January 2026

Modified

15 January 2026

KEV Added

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Patch

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CVSS Score 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0062 70.3th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-22244 is a high-severity Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336) vulnerability in Open-Metadata Openmetadata. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 29.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-34 Non-modifiable Executable Programs

addresses: CWE-94

Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.

SC-44 Detonation Chambers

addresses: CWE-94

Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.

SI-10 Information Input Validation

addresses: CWE-94

Validates inputs used in dynamic code generation to block injected directives.

SI-16 Memory Protection

addresses: CWE-94

Directly prevents execution of attacker-supplied code written into data memory regions.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059 Command and Scripting Interpreter Execution

Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.

attack.mitre.org →

Why these techniques?

SSTI in public-facing OpenMetadata server directly enables remote exploitation for code execution (T1190); resulting RCE facilitates arbitrary command/script execution on the host (T1059).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

OpenMetadata is a unified metadata platform. Versions prior to 1.11.4 are vulnerable to remote code execution via Server-Side Template Injection (SSTI) in FreeMarker email templates. An attacker must have administrative privileges to exploit the vulnerability. Version 1.11.4 contains a patch.

Deeper analysisAI

CVE-2026-22244 is a remote code execution vulnerability affecting OpenMetadata, a unified metadata platform. Versions prior to 1.11.4 are vulnerable due to Server-Side Template Injection (SSTI) in FreeMarker email templates, mapped to CWEs-1336 and CWE-94.

An attacker must possess administrative privileges to exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation enables remote code execution, resulting in high impacts to confidentiality, integrity, and availability, as indicated by the CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Mitigation is available in OpenMetadata version 1.11.4, which contains a patch. Details are provided in the GitHub security advisory GHSA-5f29-2333-h9c7 and the patching commit bffe7c45807763f9b682021d4211c478d2a08bb3.