CVE-2026-3303

IBM Concert Software Permissive Cross-domain Security Policy

Published Oct 19, 2026 CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Description
IBM Concert 1.0 through 3.0.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.

Remediation

Vendor Solution

IBM strongly recommends addressing these vulnerabilities now by upgrading to IBM Concert Software 3.0.1.1 Download IBM Concert Software 3.0.1.1 from Container software library section of IBM Entitled Registry (ICR) and follow installation instructions depending on the type of deployment.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM Concert 1.0 through 3.0.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.
Title IBM Concert Software Permissive Cross-domain Security Policy
First Time appeared Ibm
Ibm concert
Weaknesses CWE-942
CPEs cpe:2.3:a:ibm:concert:*:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm concert
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Oct 20, 2026, 4:10 PM
Reserved
Feb 26, 2026, 8:38 PM
Status
Analyzed
Published
Oct 19, 2026, 6:17 PM
Modified
Nov 3, 2026, 3:53 PM