Improper authentication in IBM Cognos Controller
Priority MEDIUM 45CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
IBM Cognos Controller 10.4.0, 10.4.1, and 10.4.2 could allow a remote attacker to bypass security restrictions, caused by improper validation of authentication cookies. IBM X-Force ID: 190847.
Why it matters now
EPSS 0.01481 74th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Cognos Controller | 10.4.0; 10.4.1; 10.4.2 | — | No fix listed | CNA |
- Cognos Controller VendorIBM Affected 10.4.0; 10.4.1; 10.4.2 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:cognos_controller:10.4.0:*:*:*:*:*:*:* | 10.4.0 | Vulnerable | IBM |
| cpe:2.3:a:ibm:cognos_controller:10.4.1:*:*:*:*:*:*:* | 10.4.1 | Vulnerable | IBM |
| cpe:2.3:a:ibm:cognos_controller:10.4.2:*:*:*:*:*:*:* | 10.4.2 | Vulnerable | IBM |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:ibm:cognos_controller:10.4.0:*:*:*:*:*:*:* Versions 10.4.0 Vulnerable ·IBM
- cpe:2.3:a:ibm:cognos_controller:10.4.1:*:*:*:*:*:*:* Versions 10.4.1 Vulnerable ·IBM
- cpe:2.3:a:ibm:cognos_controller:10.4.2:*:*:*:*:*:*:* Versions 10.4.2 Vulnerable ·IBM
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-4879
- 2026-10-03 Alias added: GHSA-mgwf-4gww-g338
References
More IBM Cognos Controller vulnerabilities
- TI-2020-04109 Incorrect authorization in IBM Cognos Controller CVSS 3.1CRITICAL 9.8
- TI-2024-27094 IBM Cognos Controller file upload CVSS 3.1CRITICAL 9.8
- TI-2024-16504 IBM Cognos Controller file upload CVSS 3.1CRITICAL 9.8
- TI-2024-16503 IBM Cognos Controller file upload CVSS 3.1CRITICAL 9.8
- TI-2023-25486 IBM Cognos Controller XML external entity injection CVSS 3.1HIGH 8.2
- TI-2023-20068 IBM Cognos Controller SQL injection CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-4879 · CVE Program
- CVE-2020-4879 · NVD
- FIRST EPSS
- GHSA-mgwf-4gww-g338 · GitHub Advisory Database · CC BY 4.0
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