Riskcovery

CVE-2026-12670

IBM MQ Denial of Service

State
Published
Severity
5.3 Medium
Published
Oct 19, 2026
Updated
Oct 19, 2026
Reserved
Jun 18, 2026

Read the record on cve.org

Description

IBM MQ could allow an authenticated attacker to cause a denial of service through a specially crafted message that triggers excessive memory operations during character set conversion.

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hibm

Weaknesses

  • CWE-681 Incorrect Conversion between Numeric Types

Affected Products

ProductVersions
MQ OperatorIBM
  • 3.2.0 through 3.2.29Affected
  • 3.3.0 to before 3.4.0Affected
  • 3.4.1Affected
  • 3.5.0Affected
  • 3.5.1 through 3.5.3Affected
  • 3.6.0 through 3.6.4Affected
  • 3.7.0 through 3.7.2Affected
  • 3.8.0Affected
  • 3.8.1Affected
  • 3.9.0Affected
  • 3.9.1Affected
  • 3.9.2Affected
  • 4.0.0Affected
  • 4.0.1Affected
  • 4.0.2Affected
  • 4.0.3Affected
  • 4.0.4Affected
  • 2.0.0 through 2.0.29Affected
MQ Advanced container imagesIBM
  • 9.4.0.6-r1 through 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-r2Affected
  • 9.4.0.6-r2Affected
  • 9.4.0.7-r1Affected
  • 9.4.0.10-r1Affected
  • 9.4.0.10-r2Affected
  • 9.4.0.11-r1Affected
  • 9.4.0.11-r2Affected
  • 9.4.0.11-r3Affected
  • 9.4.0.12-r1Affected
  • 9.4.0.15-r1 through 9.4.0.15-r4Affected
  • 9.4.0.16-r1Affected
  • 9.4.0.16-r2Affected
  • 9.4.0.17-r1Affected
  • 9.4.0.17-r2Affected
  • 9.4.0.20-r1Affected
  • 9.4.0.21-r1Affected
  • 9.4.0.21-r2Affected
  • 9.4.0.25-r1 through 9.4.0.25-r3Affected
  • 9.4.0.26-r1Affected
  • 9.4.1.0-r1Affected
  • 9.4.1.0-r2Affected
  • 9.4.1.1-r1Affected
  • 9.4.2.0-r1Affected
  • 9.4.2.0-r2Affected
  • 9.4.2.1-r1Affected
  • and 46 more versions

References

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