IBM MQ 8.0.0.0 through 8.0.0.10, 9.0.0.0 through 9.0.0.5, and 9.1.0.0 through 9.1.1 is…
Priority LOW 37Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
IBM MQ 8.0.0.0 through 8.0.0.10, 9.0.0.0 through 9.0.0.5, and 9.1.0.0 through 9.1.1 is vulnerable to a denial of service attack within the TLS key renegotiation function. IBM X-Force ID: 156564.
Why it matters now
EPSS 0.02147 82nd 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 | 9.0.0.1; 8.0.0.1; 8.0.0.2; 8.0.0.3; 8.0.0.4; 8.0.0.5; 8.0.0.6; 8.0.0.7; 9.0.0.2; 8.0.0.8; 8.0.0.9; 9.0.0.3; 8.0.0.0; 8.0.0.10; 9.0.0.0; 9.0.0.4; 9.0.0.5; 9.1.0.0; 9.1.0.1; 9.1.1 | — | No fix listed | CNA |
- MQ VendorIBM Affected 9.0.0.1; 8.0.0.1; 8.0.0.2; 8.0.0.3; 8.0.0.4; 8.0.0.5; 8.0.0.6; 8.0.0.7; 9.0.0.2; 8.0.0.8; 8.0.0.9; 9.0.0.3; 8.0.0.0; 8.0.0.10; 9.0.0.0; 9.0.0.4; 9.0.0.5; 9.1.0.0; 9.1.0.1; 9.1.1 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:mq:*:*:*:*:*:*:*:* | 8.0.0.0 – 8.0.0.10 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* | 9.0.0.0 – 9.0.0.5 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* | 9.1.0 – 9.1.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* | 9.1.0.0 – 9.1.0.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:* | 8.0.0.0 – 8.0.0.10 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq_appliance:*:*:*:*:continuous_delivery:*:*:* | 9.1.0 – 9.1.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:mq_appliance:*:*:*:*:lts:*:*:* | 9.1.0.0 – 9.1.0.1 | Vulnerable | IBM |
- cpe:2.3:a:ibm:mq:*:*:*:*:*:*:*:* Versions 8.0.0.0 – 8.0.0.10 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* Versions 9.0.0.0 – 9.0.0.5 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:* Versions 9.1.0 – 9.1.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:* Versions 9.1.0.0 – 9.1.0.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq_appliance:*:*:*:*:*:*:*:* Versions 8.0.0.0 – 8.0.0.10 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq_appliance:*:*:*:*:continuous_delivery:*:*:* Versions 9.1.0 – 9.1.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:mq_appliance:*:*:*:*:lts:*:*:* Versions 9.1.0.0 – 9.1.0.1 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-4055
- 2026-10-03 Alias added: GHSA-q2xx-h2wh-wv97
References
More IBM Mq vulnerabilities
- TI-2020-03985 Deserialization of untrusted data in IBM MQ CVSS 3.1CRITICAL 9.8
- TI-2026-08787 IBM MQ queue manager is vulnerable to unauthenticated remote code execution CVSS 3.1CRITICAL 9.8
- TI-2022-06772 XML external entity injection in IBM MQ CVSS 3.1CRITICAL 9.1
- TI-2026-09821 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
- TI-2026-09820 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
- TI-2026-09317 IBM MQ queue manager is vulnerable to remote code execution CVSS 3.1HIGH 8.8
Sources
- CVE-2019-4055 · CVE Program
- CVE-2019-4055 · NVD
- FIRST EPSS
- GHSA-q2xx-h2wh-wv97 · GitHub Advisory Database · CC BY 4.0
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