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TI-2026-77113 Aliases CVE-2026-83403GHSA-w7f5-7hm6-6r6c

Improper access control in Oracle Identity Manager Legacy UI

Priority MEDIUM 40CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Oracle Identity Manager in Oracle Fusion Middleware, supported versions 12.2.1.4.0 and 14.1.2.1.0, has an improper access control flaw in its OIM Legacy UI component (CWE-284). A low privileged attacker with network access via HTTP can easily exploit it without user interaction. Successful attacks can result in takeover of Oracle Identity Manager.

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

Description from the CNA

Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: OIM Legacy UI). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Identity Manager. Successful attacks of this vulnerability can result in takeover of Oracle Identity Manager. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/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 0.00403 34th 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

VendorProductAffected versionsFixed inStatusSource
OracleOracle Identity Manager12.2.1.4.0; 14.1.2.1.0—No fix listedCNA
  • Oracle Identity Manager VendorOracle Affected 12.2.1.4.0; 14.1.2.1.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:oracle:identity_manager:12.2.1.4.0:*:*:*:*:*:*:*12.2.1.4.0VulnerableOracle
cpe:2.3:a:oracle:identity_manager:14.1.2.1.0:*:*:*:*:*:*:*14.1.2.1.0VulnerableOracle
  • cpe:2.3:a:oracle:identity_manager:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:identity_manager:14.1.2.1.0:*:*:*:*:*:*:* Versions 14.1.2.1.0 Vulnerable ·Oracle

Remediation

The sources list no fixed version for Oracle Identity Manager.

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 Identity Manager — oracle.com/security-alerts/cpuoct2026.html

    8 records Highest priority Priority MEDIUM 4 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-77465 Unauthenticated attackers can take over Oracle Identity ManagerPriority MEDIUM 49
    • TI-2026-77318 Improper authentication in Oracle Identity Manager Legacy UIPriority MEDIUM 40
    • TI-2026-77112 Improper access control in Oracle Identity Manager OIM Legacy UIPriority MEDIUM 40
    Show all 8 records → Advisory →

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-83403
  2. 2026-10-21 Alias added: GHSA-w7f5-7hm6-6r6c
  3. 2026-10-22 Priority changed: MEDIUM → LOW
  4. 2026-10-27 Weakness changed · CISA ADP
  5. 2026-10-27 CISA SSVC decision points changed
  6. 2026-10-27 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2025-38151 Missing authentication in Oracle Identity Manager KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-02270 Improper access control in Oracle WebLogic Server CVSS 3.1CRITICAL 9.8
  • TI-2019-08480 jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles… CVSS 3.1MEDIUM 6.1
  • TI-2017-11069 Deserialization of untrusted data in FasterXML jackson-databind CVSS 3.1CRITICAL 9.8
  • TI-2017-07502 Vulnerability in the Oracle Identity Manager component of Oracle Fusion Middleware… CVSS 3.0CRITICAL 10.0
  • TI-2026-17691 Missing authentication in Oracle Identity Manager CVSS 3.1CRITICAL 9.8
See all 54 →

Sources

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