Bypass DedicatedAgentToCustomerGroups Setting
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
An improper Input Validation vulnerability in OTRS Customer Backend module allows to access customer information which are restricted to other groups. Please note that the feature has to be anabled and CustomerGroupSupport has to be used to be affected. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OTRS AG | OTRS | 7.0.x and later; 8.0.x and later; 2023.x and later; 2024.x and later; 2025.x and later; 2026.x – 2026.3.x | — | No fix listed | CNA |
- OTRS VendorOTRS AG Affected 7.0.x and later; 8.0.x and later; 2023.x and later; 2024.x and later; 2025.x and later; 2026.x – 2026.3.x Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-48189
- 2026-10-03 Alias added: GHSA-9prp-8cr9-jvwq
References
More OTRS AG Otrs vulnerabilities
- TI-2017-12458 In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS… CVSS 3.0HIGH 8.8
- TI-2026-35608 SQL Injection via MySQL Quote Method CVSS 3.1CRITICAL 9.1
- TI-2023-04991 SSL Certificates are not checked for E-Mail Handling CVSS 3.1CRITICAL 9.1
- TI-2022-04045 SQL Injection via OTRS Search API CVSS 3.1CRITICAL 9.8
- TI-2017-12258 Code injection exists in Kernel/System/Spelling.pm in Open Ticket Request System (OTRS) 5… CVSS 3.0HIGH 8.8
- TI-2017-06753 In Open Ticket Request System (OTRS) 3.3.x through 3.3.16, 4.x through 4.0.23, and 5.x… CVSS 3.0HIGH 8.8
Sources
- CVE-2026-48189 · CVE Program
- CVE-2026-48189 · NVD
- FIRST EPSS
- GHSA-9prp-8cr9-jvwq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences