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TI-2026-77204 Aliases CVE-2026-87364GHSA-wvwg-jh57-xfjc

Improper Access Control in Oracle Service Bus Core Component

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

Improper Access Control (CWE-284) in the Core component of Oracle Service Bus, part of Oracle Fusion Middleware, lets a low privileged attacker with network access via HTTP take over Oracle Service Bus. Oracle describes the vulnerability as easily exploitable and rates it CVSS 3.1 base score 8.8 (HIGH), with high confidentiality, integrity and availability impact. Oracle lists supported versions 12.2.1.4.0 and 14.1.2.0.0 as affected. CISA's SSVC data records no exploitation and the vulnerability is not in CISA KEV.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Service Bus. Successful attacks of this vulnerability can result in takeover of Oracle Service Bus. 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 0.00402 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 Service Bus12.2.1.4.0; 14.1.2.0.0—No fix listedCNA
  • Oracle Service Bus VendorOracle Affected 12.2.1.4.0; 14.1.2.0.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:oracle:service_bus:12.2.1.4.0:*:*:*:*:*:*:*12.2.1.4.0VulnerableOracle
cpe:2.3:a:oracle:service_bus:14.1.2.0.0:*:*:*:*:*:*:*14.1.2.0.0VulnerableOracle
  • cpe:2.3:a:oracle:service_bus:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:service_bus:14.1.2.0.0:*:*:*:*:*:*:* Versions 14.1.2.0.0 Vulnerable ·Oracle

Remediation

No fixed version is listed for the affected releases 12.2.1.4.0 and 14.1.2.0.0. Until a fix is available, limit network access to the HTTP interface of Oracle Service Bus to trusted users and hosts.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Oracle Service Bus — oracle.com/security-alerts/cpuoct2026.html

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-77257 Improper access control in Oracle Service Bus allows takeoverPriority MEDIUM 40
    • TI-2026-77256 Oracle Service Bus flaw lets low-privileged network attacker take over productPriority MEDIUM 40
    • TI-2026-77199 Exposure of sensitive information in Oracle Service BusPriority MEDIUM 40
    Show all 5 records → Advisory →

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-87364
  2. 2026-10-21 Alias added: GHSA-wvwg-jh57-xfjc
  3. 2026-10-22 Priority changed: MEDIUM → LOW
  4. 2026-10-28 Weakness changed · CISA ADP
  5. 2026-10-28 CISA SSVC decision points changed
  6. 2026-10-28 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2019-08480 jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles… CVSS 3.1MEDIUM 6.1
  • TI-2019-07411 Deserialization of untrusted data in Apache Commons Beanutils CVSS 3.1HIGH 7.3
  • TI-2015-07630 jQuery before 3.0.0 is vulnerable to Cross-site Scripting (XSS) attacks when a… CVSS 3.0MEDIUM 6.1
  • TI-2017-02703 Vulnerability in the Oracle Service Bus component of Oracle Fusion Middleware… CVSS 3.0HIGH 7.3
  • TI-2026-77199 Exposure of sensitive information in Oracle Service Bus CVSS 3.1HIGH 8.8
  • TI-2024-14022 Missing authorization in Oracle Service Bus CVSS 3.1HIGH 7.5
See all 9 →

Sources

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