Answer in brief
CVE-2026-12148 records a High severity (CVSS 7.5) vulnerability in IBM MQ Deserialization of Untrusted Data. The current sources do not mark it as known exploited. The current feed maps IBM/MQ Advanced container images (generic), IBM/MQ Operator (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps IBM/MQ Advanced container images (generic), IBM/MQ Operator (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| IBM/MQ Advanced container imagesgeneric | >=9.4.0.6-r1 <=r1 9.4.0.6-r2 9.4.0.7-r1 9.4.0.10-r1 9.4.0.10-r2 9.4.0.11-r1 9.4.0.11-r2 9.4.0.11-r3 9.4.0.12-r1 9.4.0.15-r1 - 9.4.0.15-r4 9.4.0.16-r1 9.4.0.16-r2 9.4.0.17-r1 9.4.0.17-r2 9.4.0.20-r1 9.4.0.21-r1 9.4.0.21-r2 9.4.0.25-r1 - 9.4.0.25-r3 9.4.0.26-r1CD: 9.4.1.0-r1 9.4.1.0-r2 9.4.1.1-r1 9.4.2.0-r1 9.4.2.0-r2 9.4.2.1-r1 9.4.2.1-r2 9.4.3.0-r1 9.4.3.0-r2 9.4.3.1-r1 - 9.4.3.1-r3 9.4.4.0-r1 - 9.4.4.0-r4 9.4.4.1-r1 9.4.5.0-r1 9.4.5.0-r2 9.4.5.1-r1 10.0.0.0-r1 - 10.0.0.0-r4 10.0.0.5-r1LTS: 9.3.0.0-r1 9.3.0.0-r2 9.3.0.0-r3 9.3.0.1-r1 9.3.0.1-r2 9.3.0.1-r3 9.3.0.1-r4 9.3.0.3-r1 9.3.0.4-r1 9.3.0.4-r2 9.3.0.5-r1 9.3.0.5-r2 9.3.0.5-r3 9.3.0.6-r1 9.3.0.10-r1 9.3.0.10-r2 9.3.0.11-r1 9.3.0.11-r2 9.3.0.15-r1 9.3.0.16-r1 9.3.0.16-r2 9.3.0.17-r1 9.3.0.17-r2 9.3.0.17-r3 9.3.0.20-r1 9.3.0.20-r2 9.3.0.21-r1 9.3.0.21-r2 9.3.0.21-r3 9.3.0.25-r1 9.4.0.0-r1 9.4.0.0-r2 9.4.0.0-r3 9.4.0.5-r1 9.4.0.5-r2 || 9.4.0.6-r2 || 9.4.0.7-r1 || 9.4.0.10-r1 || 9.4.0.10-r2 || 9.4.0.11-r1 || 9.4.0.11-r2 || 9.4.0.11-r3 || 9.4.0.12-r1 || >=9.4.0.15-r1 <=9.4.0.15-r4 || 9.4.0.16-r1 || 9.4.0.16-r2 || 9.4.0.17-r1 || 9.4.0.17-r2 || 9.4.0.20-r1 || 9.4.0.21-r1 || 9.4.0.21-r2 || >=9.4.0.25-r1 <=9.4.0.25-r3 || 9.4.0.26-r1 || 9.4.1.0-r1 || 9.4.1.0-r2 || 9.4.1.1-r1 || 9.4.2.0-r1 || 9.4.2.0-r2 || 9.4.2.1-r1 || 9.4.2.1-r2 || 9.4.3.0-r1 || 9.4.3.0-r2 || >=9.4.3.1-r1 <=9.4.3.1-r3 || 9.4.4.0-r1 || 9.4.4.1-r1 || 9.4.5.0-r1 || 9.4.5.0-r2 || 9.4.5.1-r1 || >=10.0.0.0-r1 <=10.0.0.0-r4 || 10.0.0.5-r1 || 9.3.0.0-r1 || 9.3.0.0-r2 || 9.3.0.0-r3 || 9.3.0.1-r1 || 9.3.0.1-r2 || 9.3.0.1-r3 || 9.3.0.1-r4 || 9.3.0.3-r1 || 9.3.0.4-r1 || 9.3.0.4-r2 || 9.3.0.5-r1 || 9.3.0.5-r2 || 9.3.0.5-r3 || 9.3.0.6-r1 || 9.3.0.10-r1 || 9.3.0.10-r2 || 9.3.0.11-r1 || 9.3.0.11-r2 || 9.3.0.15-r1 || 9.3.0.16-r1 || 9.3.0.16-r2 || 9.3.0.17-r1 || 9.3.0.17-r2 || 9.3.0.17-r3 || 9.3.0.20-r1 || 9.3.0.20-r2 || 9.3.0.21-r1 || 9.3.0.21-r2 || 9.3.0.21-r3 || 9.3.0.25-r1 || 9.4.0.0-r1 || 9.4.0.0-r2 || 9.4.0.0-r3 || 9.4.0.5-r1 || 9.4.0.5-r2 | Not reported |
| IBM/MQ Operatorgeneric | >=3.2.0 <=3.2.29 || >=3.3.0 <3.4.0 || 3.4.1 || 3.5.0 || >=3.5.1 <=3.5.3 || >=3.6.0 <=3.6.4 || >=3.7.0 <=3.7.2 || 3.8.0 || 3.8.1 || 3.9.0 || 3.9.1 || 3.9.2 || 4.0.0 || 4.0.1 || 4.0.2 || 4.0.3 || 4.0.4 || >=2.0.0 <=2.0.29 | 3.4.0 |
Published upstream
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 19, 2026
IBM MQ Operator could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to unrestricted Java deserialization in the MQ Classes for Java.
Quoted source text, attributed separately from HOL analysis.