What is CVE-2026-12084?

CVE-2026-12084 is a medium-severity vulnerability in IBM Devops Deploy, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 5.4/10. Published 2026-06-30.

How severe is CVE-2026-12084?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in IBM Devops Deploy

CVE-2026-12084

IBM UCD - IBM DevOps Deploy 8.1 through 8.1.2.6, and 8.2 through 8.2.1.0 uses Cross-Origin Resource Sharing (CORS) which could allow an attacker to carry out privileged actions and retrieve sensitive information as the domain name is not being limited to only trusted domains.

Published 2026-06-30 · last modified 2026-07-02.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (16.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

IBM Devops Deploy
IBM Ucd - Devops Deploy — versions 8.1.0, 8.2.0

Weakness classification (CWE)

CWE-942 — Permissive Cross-domain Policy with Untrusted Domains

References

www.ibm.com/support/pages/node/7277575 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-12084?: CVE-2026-12084 is a medium-severity vulnerability in IBM Devops Deploy, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 5.4/10. Published 2026-06-30.
How severe is CVE-2026-12084?: Medium severity. CVSS v3 base score is 5.4 out of 10.