CVE-2026-22244Proof of concept (PoC) published · CISA

OpenMetadata Server-Side Template Injection (SSTI) in FreeMarker email templates that leads to RCE

CVSS score

8.5

EPSS probability

%1.3

Risk score

0.1

Published

9 mo ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-22244 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

OpenMetadata is a unified metadata platform. Versions 1.5.0 through 1.11.3 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.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-22244 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	open-metadata	OpenMetadata	View
2	open-metadata	OpenMetadata	View
3	maven	org.open-metadata:platform	View

Total affected vendors: 2|Products: 3

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
9.1	CVSS 3.x	—	Vector not published	GitHub Advisory
8.5	CVSS 4.0	—	Vector not published	GitHub Advisory
8.5	CVSS V4_0	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P	CVE CNA
8.5	CVSS V40	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD
7.2	CVSS V31	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-22244 is associated with the following CWEs:

CWE-1336: Common Weakness Enumeration Entry CWE-1336 CWE-94: Improper Control of Generation of Code ('Code Injection')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-22244 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsHigh

UserGerekmiyor

Official Sources and Advisories

https://github.com/open-metadata/OpenMetadata/security/advisories/GHSA-5f29-2333-h9c7vendor-advisory https://github.com/open-metadata/OpenMetadata/commit/bffe7c45807763f9b682021d4211c478d2a08bb3vendor-advisory https://github.com/open-metadata/OpenMetadata/commit/d17d13cee87db139e5d8f778547174f8ee341108vendor-advisory https://nvd.nist.gov/vuln/detail/CVE-2026-22244vendor-advisory https://github.com/advisories/GHSA-5f29-2333-h9c7vendor-advisory

CVSS Vector Radar Chart

8.5 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama doğrulandı

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

open-metadata

maven

Weakness Type (CWE & CAPEC)

CWE-1336 CWE-94

Similar Vulnerabilities

9.0

CVE-2021-45046 Actively exploited

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