Security readout for executives and security teams
Plain-English summary
OpenMetadata versions 1.5.0 through 1.11.3 allow an administrator to turn a crafted email template into code execution on the server. Successful exploitation could expose or alter data and disrupt services. The administrative-access requirement limits who can exploit it, but the potential impact remains severe.
Executive priority
Treat this as a prompt remediation item for every affected deployment. Prioritize internet-reachable or business-critical systems and environments with broad administrative access. Immediate emergency shutdown is not supported by the evidence, but delayed patching leaves a path from administrator compromise to full server compromise.
Technical view
CVE-2026-22244 is a FreeMarker server-side template injection vulnerability classified as CWE-1336. Unsafe processing of email templates can give an authenticated administrator remote code execution. It carries CVSS 4.0 score 8.5, with high confidentiality, integrity, and availability impacts. OpenMetadata 1.11.4 contains the patch.
Likely exposure
Deployments running OpenMetadata 1.5.0 through 1.11.3 are affected. Practical exposure is greatest where administrative accounts are shared, weakly protected, compromised, or granted to untrusted users. The supplied evidence does not identify other affected products or versions.
Exploitation context
Exploitation requires administrative privileges and no user interaction. The CVSS vector records proof-of-concept maturity, but the supplied sources do not establish active exploitation. This CVE is not identified as a KEV entry in the source bundle.
Researcher notes
The documented boundary is FreeMarker email-template processing under administrative control. CWE-1336 and the referenced commits support the SSTI-to-RCE assessment. Researchers should review the vendor advisory and both patch commits for implementation details. Evidence supplied here does not establish exploitation prevalence, affected configurations beyond version range, or indicators of compromise.
Mitigation direction
- Upgrade affected OpenMetadata deployments to version 1.11.4 or later.
- Restrict administrative access to trusted personnel until upgrading is complete.
- Rotate or disable unnecessary administrative credentials if compromise is suspected.
- Follow the vendor advisory and normal backup, testing, and change-control procedures.
Validation and detection
- Inventory OpenMetadata deployments and record their exact versions.
- Confirm no deployment remains on versions 1.5.0 through 1.11.3.
- Review administrative accounts, authentication events, and privilege assignments for anomalies.
- Investigate unauthorized email-template changes and unusual server activity.
- Verify the deployed build includes the vendor-referenced patch.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-1336: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-22244 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.5 (4.0)
- Known Exploited
- No
- Published
Vector: 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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——GitHub_MVulnerability scoring details
Base CVSS 4.0 score
8.5HighVector: 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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/open-metadata/OpenMetadata/security/advisories/GHSA-5f29-2333-h9c7CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/open-metadata/OpenMetadata/commit/bffe7c45807763f9b682021d4211c478d2a08bb3CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/open-metadata/OpenMetadata/commit/d17d13cee87db139e5d8f778547174f8ee341108CVE reference, GitHub_M · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements Used in a Template Engine
Improper Neutralization of Special Elements Used in a Template Engine represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.