Information exposure in Oracle Siebel CRM Integration REST component
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
Oracle Siebel CRM Integration from 17.0 through 26.9 contains an information exposure flaw in its REST component (CWE-200). An unauthenticated attacker with network access over HTTP can exploit it when a person other than the attacker interacts, gaining read access to a subset of data accessible to Siebel CRM Integration. The CVSS 3.1 base score is 3.1, rated low.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: REST). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Siebel CRM Integration accessible data. CVSS 3.1 Base Score 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Siebel CRM Integration.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Oracle Siebel CRM Integration — oracle.com/security-alerts/cpuoct2026.html
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2026-77822 Uncontrolled resource consumption in Oracle Siebel CRM IntegrationPriority LOW 39
- TI-2026-77436 Sensitive information exposure in Oracle Siebel CRM IntegrationPriority LOW 39
- TI-2026-77179 Information exposure in Oracle Siebel CRM IntegrationPriority LOW 30
Timeline
- 2026-10-21 Threatist record created from CVE-2026-87339
- 2026-10-21 Alias added: GHSA-q2wf-h23g-gg5p
- 2026-10-28 Weakness changed · CISA ADP
- 2026-10-28 CISA SSVC decision points changed
References
Advisory 1
More Oracle Siebel Crm vulnerabilities
- TI-2026-44706 Improper access control in Oracle Siebel CRM Integration CVSS 3.1CRITICAL 9.8
- TI-2026-44699 Improper access control in Oracle Siebel CRM Administration CVSS 3.1CRITICAL 9.8
- TI-2026-44566 Improper access control in Oracle Siebel CRM Cloud Applications CVSS 3.1CRITICAL 9.9
- TI-2026-43962 Improper access control in Oracle Siebel CRM Cloud Applications CVSS 3.1CRITICAL 9.8
- TI-2026-34639 Missing authentication in Oracle Siebel CRM Development CVSS 3.1CRITICAL 9.8
- TI-2026-34525 Improper access control in Oracle Siebel CRM Cloud Applications CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-87339 · CVE Program
- CVE-2026-87339 · NVD
- FIRST EPSS
- GHSA-q2wf-h23g-gg5p · 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