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CVE-2026-12148

IBM MQ Deserialization of Untrusted Data

High7.5EPSS 0.40%
Published
Updated
Reserved
Assigned by
ibm

Description

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.

Scores

CVSS scores of CVE-2026-12148, by who scored it
Scored byCVSSScoreVector
ibmCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.40% · top 66% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • IBM · MQ Operator

    • affected 3.2.0 – ≤ 3.2.29
    • affected 3.3.0 – < 3.4.0
    • affected 3.4.1
    • affected 3.5.0
    • affected 3.5.1 – ≤ 3.5.3
    • affected 3.6.0 – ≤ 3.6.4
    • affected 3.7.0 – ≤ 3.7.2
    • affected 3.8.0
    • affected 3.8.1
    • affected 3.9.0
    • affected 3.9.1
    • affected 3.9.2
    • affected 4.0.0
    • affected 4.0.1
    • affected 4.0.2
    • affected 4.0.3
    • affected 4.0.4
    • affected 2.0.0 – ≤ 2.0.29

  • IBM · MQ Advanced container images

    • affected 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
    • affected 9.4.0.6-r2
    • affected 9.4.0.7-r1
    • affected 9.4.0.10-r1
    • affected 9.4.0.10-r2
    • affected 9.4.0.11-r1
    • affected 9.4.0.11-r2
    • affected 9.4.0.11-r3
    • affected 9.4.0.12-r1
    • affected 9.4.0.15-r1 – ≤ 9.4.0.15-r4
    • affected 9.4.0.16-r1
    • affected 9.4.0.16-r2
    • affected 9.4.0.17-r1
    • affected 9.4.0.17-r2
    • affected 9.4.0.20-r1
    • affected 9.4.0.21-r1
    • affected 9.4.0.21-r2
    • affected 9.4.0.25-r1 – ≤ 9.4.0.25-r3
    • affected 9.4.0.26-r1
    • affected 9.4.1.0-r1
    • affected 9.4.1.0-r2
    • affected 9.4.1.1-r1
    • affected 9.4.2.0-r1
    • affected 9.4.2.0-r2
    • affected 9.4.2.1-r1
    • affected 9.4.2.1-r2
    • affected 9.4.3.0-r1
    • affected 9.4.3.0-r2
    • affected 9.4.3.1-r1 – ≤ 9.4.3.1-r3
    • affected 9.4.4.0-r1
    • affected 9.4.4.1-r1
    • affected 9.4.5.0-r1
    • affected 9.4.5.0-r2
    • affected 9.4.5.1-r1
    • affected 10.0.0.0-r1 – ≤ 10.0.0.0-r4
    • affected 10.0.0.5-r1
    • affected 9.3.0.0-r1
    • affected 9.3.0.0-r2
    • affected 9.3.0.0-r3
    • affected 9.3.0.1-r1
    • and 31 more

What to do

Solution: Issues mentioned by this security bulletin are addressed in - * IBM MQ Operator v4.1.0 https://www.ibm.com/docs/en/ibm-mq/10.0.x CD release that included IBM supplied MQ Advanced 10.0.1.0-r1 https://www.ibm.com/docs/en/ibm-mq/10.0.x container image.  * IBM MQ Operator  v4.0.5 https://www.ibm.com/docs/en/ibm-mq/10.0.x SC2 release that included IBM supplied MQ Advanced 10.0.0.5-r2 https://www.ibm.com/docs/en/ibm-mq/10.0.x container image.  * IBM MQ Operator v3.2.30 https://www.ibm.com/docs/en/ibm-mq/9.4.x SC2 release that included IBM supplied MQ Advanced 9.4.0.26-r2 https://www.ibm.com/docs/en/ibm-mq/9.4.x container image. * IBM MQ Container 10.0.1.0-r1 https://www.ibm.com/docs/en/ibm-mq/10.0.x and  10.0.0.5-r2 https://www.ibm.com/docs/en/ibm-mq/10.0.x release. IBM strongly recommends applying the latest container images.  IBM MQ Operator v4.1.0 CD release details: Image Fix Version Registry Image Location ibm-mq-operator v4.1.0 icr.io icr.io/cpopen/ibm-mq-operator@sha256:ed9a217869637c8749270fd485517ea62c8dffbd198a8f7090042ebbeb5bd127 ibm-mqadvanced-server 10.0.1.0-r1 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:06f0892b36e879d0f8957477deeabfe2b4e0fda13f64792edbe7825caf7b77e3 ibm-mqadvanced-server-dev 10.0.1.0-r1 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:129d1d736e94bae071039136585734b7ccc6cfd6e1cc7dacb9af59e60d0a57c2 IBM MQ Operator v4.0.5 SC2 release details: Image Fix Version Registry Image Location ibm-mq-operator v4.0.5 icr.io icr.io/cpopen/ibm-mq-operator@sha256:1109597707dfb3fbde274e39698f08a9011f13ca75746a30414e246459571930 ibm-mqadvanced-server 10.0.0.5-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:0218cf9da8c763b502afb02e7c0406654ac64fdd015410d7b73496fbed89a652 ibm-mqadvanced-server-dev 10.0.0.5-r2 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:6610f615ac4bf129668b70a9ae288386ea6bee87112056b83792ad2f901bcf9b IBM MQ Operator v3.2.30 SC2 release details: Image Fix Version Registry Image Location ibm-mq-operator v3.2.30 icr.io icr.io/cpopen/ibm-mq-operator@sha256:57dda3eb0391e540ff18029fdcd44a14951a73860bdc7544be5879a8ca49fc40 ibm-mqadvanced-server 9.4.0.26-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:4fc5474a0cd9da504bd4bd26ce5c0b91e088656aa56decb315b450ac7868b7e8 ibm-mqadvanced-server-integration 9.4.0.26-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server-integration@sha256:a6656d4b9c7db64dd9247c22a00607baf2c9141392d7bf5860a93325604f26ad ibm-mqadvanced-server-dev 9.4.0.26-r2 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:abf4c7e931f77aa2aeb340ad054edb35c0f382bf4a7c776d838afab23106b06a IBM MQ Container 10.0.1.0-r1 release details: Image Fix Version Registry Image Location ibm-mqadvanced-server 10.0.1.0-r1 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:06f0892b36e879d0f8957477deeabfe2b4e0fda13f64792edbe7825caf7b77e3 ibm-mqadvanced-server-dev 10.0.1.0-r1 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:129d1d736e94bae071039136585734b7ccc6cfd6e1cc7dacb9af59e60d0a57c2 IBM MQ Container 10.0.0.5-r2 release details: Image Fix Version Registry Image Location ibm-mqadvanced-server 10.0.0.5-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:0218cf9da8c763b502afb02e7c0406654ac64fdd015410d7b73496fbed89a652 ibm-mqadvanced-server-dev 10.0.0.5-r2 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:6610f615ac4bf129668b70a9ae288386ea6bee87112056b83792ad2f901bcf9b

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .