TI-2026-77450 Aliases CVE-2026-91391 GHSA-32gg-jv26-gmvx

Information exposure in Oracle Siebel CRM End User Open UI

LOW 17CWE-200Published 2026-10-20 · Updated 2026-10-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
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 End User versions 17.0 through 26.9 are affected in the Open UI component. A flaw exposes sensitive information to an unauthorized actor (CWE-200). A difficult to exploit flaw lets an unauthenticated attacker with network access via HTTP read a subset of Siebel CRM End User accessible data.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). 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 End User. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Siebel CRM End User accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00264 18th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Oracle	Siebel CRM End User	17.0 – 26.9	—	No fix listed	CNA

Siebel CRM End User VendorOracle Affected 17.0 – 26.9 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:oracle:siebel_crm::::::::	17.0 – 26.9	Vulnerable	Oracle

cpe:2.3:a:oracle:siebel_crm:*:*:*:*:*:*:*:* Versions 17.0 – 26.9 Vulnerable ·Oracle

Remediation

The sources list no fixed version for Siebel CRM End User.

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 · 2026-10-20
Oracle Siebel CRM End User — oracle.com/security-alerts/cpuoct2026.html
14 records Highest priority Priority MEDIUM 1 MEDIUM, 13 LOW
Other records, highest priority first
- TI-2026-77500 Missing authentication in Oracle Siebel CRM End User exposes dataPriority MEDIUM 41
- TI-2026-77778 Access control flaw in Oracle Siebel CRM End User exposes dataPriority LOW 39
- TI-2026-77487 Improper access control in Oracle Siebel CRM End User exposes dataPriority LOW 35
Show all 14 records → Advisory →

Timeline

2026-10-21 Threatist record created from CVE-2026-91391
2026-10-21 Alias added: GHSA-32gg-jv26-gmvx
2026-10-21 Weakness changed · CISA ADP
2026-10-21 CISA SSVC decision points changed

References

Advisory 1

Oracle Advisory

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

See all 244 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences