Information disclosure through error messages in IBM MQ Appliance
Priority LOW 21CWE-209Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-209.
Summary
IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop 8.0, 9.1 LTS, and 9.1 CD could allow under special circumstances, an authenticated user to obtain sensitive information due to a data leak from an error message within the pre-v7 pubsub logic. IBM X-Force ID: 177402.
Why it matters now
EPSS 0.00748 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | MQ Appliance | 8.0; 9.1.LTS; 9.1.CD | — | No fix listed | CNA |
- MQ Appliance VendorIBM Affected 8.0; 9.1.LTS; 9.1.CD Fixed in — No fix listed CNA
CPE configurations NVD · 3
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-4319
- 2026-10-03 Alias added: GHSA-r542-g4pm-8f6m
References
More IBM Mq Appliance vulnerabilities
- TI-2020-03985 Deserialization of untrusted data in IBM MQ CVSS 3.1CRITICAL 9.8
- TI-2017-01080 OS command injection in IBM MQ Appliance CVSS 3.0HIGH 8.8
- TI-2025-00826 IBM MQ code execution CVSS 3.1HIGH 8.8
- TI-2023-11446 IBM MQ denial of service CVSS 3.1HIGH 7.5
- TI-2020-04160 Cross-site request forgery in IBM MQ Appliance CVSS 3.1HIGH 8.8
- TI-2024-16522 IBM MQ code execution CVSS 3.1HIGH 7.5
Sources
- CVE-2020-4319 · CVE Program
- CVE-2020-4319 · NVD
- FIRST EPSS
- GHSA-r542-g4pm-8f6m · GitHub Advisory Database · CC BY 4.0
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