TI-2026-77546 Aliases CVE-2026-91496 GHSA-5wx3-grjq-jphv

Improper access control in Oracle E-Business Suite Workflow

LOW 35CWE-284Published 2026-10-20 · Updated 2026-10-24

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Oracle E-Business Suite Workflow versions 12.2.3 through 12.2.15 are affected by a flaw in the Workflow Notification Mailer component. The flaw is an improper access control weakness (CWE-284) that lets a low-privileged attacker with network access over HTTP take over Workflow. The attack is difficult to carry out. The record reports no known exploitation.

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

Description from the CNA

Vulnerability in the Workflow product of Oracle E-Business Suite (component: Workflow Notification Mailer). Supported versions that are affected are 12.2.3-12.2.15. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Workflow. Successful attacks of this vulnerability can result in takeover of Workflow. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00301 22nd 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: 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
Oracle	Workflow	12.2.3 – 12.2.15	—	No fix listed	CNA

Workflow VendorOracle Affected 12.2.3 – 12.2.15 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:oracle:workflow::::::::	—	—	Oracle

cpe:2.3:a:oracle:workflow:*:*:*:*:*:*:*:* Versions — — ·Oracle

Remediation

The sources list no fixed version for Oracle E-Business Suite Workflow.

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 Workflow — oracle.com/security-alerts/cpuoct2026.html
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-78109 Improper access control in Oracle E-Business Suite WorkflowPriority MEDIUM 50
- TI-2026-77554 Missing authentication in Oracle E-Business Suite WorkflowPriority LOW 37
Show all 3 records → Advisory →

Timeline

2026-10-21 Threatist record created from CVE-2026-91496
2026-10-21 Alias added: GHSA-5wx3-grjq-jphv
2026-10-22 Priority changed: MEDIUM → LOW
2026-10-24 Weakness changed · CISA ADP
2026-10-24 CISA SSVC decision points changed

References

Advisory 1

Oracle Advisory

TI-2026-34425 Improper privilege management in Oracle Payments KEVCVSS 3.1CRITICAL 9.8
TI-2026-27421 Missing authentication in Oracle PeopleSoft Enterprise PeopleTools KEVCVSS 3.1CRITICAL 9.8
TI-2026-17661 Improper access control in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in KEVCVSS 3.1CRITICAL 10.0
TI-2025-38252 Improper authentication in Oracle Concurrent Processing KEVCVSS 3.1CRITICAL 9.8
TI-2025-38151 Missing authentication in Oracle Identity Manager KEVCVSS 3.1CRITICAL 9.8
TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8

See all 14200 →

Sources

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