8.1

CVE-2026-12355: ibm mq Injection

CVSS: 8.1v3.1HighAwaiting analysis
Published 15-09-2026Last modified 16-09-2026
Open JSON

Vulnerability summary

CVE-2026-12355 is a high (CVSS 8.1) Injection vulnerability in ibm mq. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.8% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-09-2026
    PublishedVulnerability first disclosed.
  2. 16-09-2026
    Last modifiedVulnerability information updated.

Description

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow an attacker to perform JNDI injection attacks due to insufficient input validation, potentially leading to information disclosure or remote code execution.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.38% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.38%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ibm1 product
  • mq≥ 9.1.0.0, ≤ 9.1.0.37 LTS | ≥ 9.2.0.0, ≤ 9.2.0.43 LTS | ≥ 9.3.0.0, ≤ 9.3.0.41 LTS | ≥ 9.3.0.0, ≤ 9.3.5.1 CD | ≥ 9.4.0.0, ≤ 9.4.0.25 LTS | ≥ 9.4.0.0, ≤ 9.4.5.1 CD | 10.0.0.0

1 vendor · 1 product

References

1 links