Resource exhaustion in Oracle Service Bus allows denial of service
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.
Summary
Oracle Service Bus in Oracle Fusion Middleware is affected in the supported versions 12.2.1.4.0 and 14.1.2.0.0. Uncontrolled resource consumption (CWE-400) lets the service consume resources without limit. An unauthenticated remote attacker with network access over HTTP can cause Oracle Service Bus to hang or crash repeatedly.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
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 unauthenticated attacker with network access via HTTP to compromise Oracle Service Bus. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Service Bus. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 | Oracle Service Bus | 12.2.1.4.0; 14.1.2.0.0 | — | No fix listed | CNA |
- Oracle Service Bus VendorOracle Affected 12.2.1.4.0; 14.1.2.0.0 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Oracle Service Bus.
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 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-2026-77204 Improper Access Control in Oracle Service Bus Core ComponentPriority MEDIUM 40
Timeline
- 2026-10-21 Threatist record created from CVE-2026-87369
- 2026-10-21 Alias added: GHSA-wc84-634v-3p5m
- 2026-10-22 Priority changed: MEDIUM → LOW
- 2026-10-22 Weakness changed · CISA ADP
- 2026-10-22 CISA SSVC decision points changed
References
Advisory 1
More Oracle Service Bus vulnerabilities
- 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-2026-77204 Improper Access Control in Oracle Service Bus Core Component CVSS 3.1HIGH 8.8
- TI-2026-77199 Exposure of sensitive information in Oracle Service Bus CVSS 3.1HIGH 8.8
Sources
- CVE-2026-87369 · CVE Program
- CVE-2026-87369 · NVD
- FIRST EPSS
- GHSA-wc84-634v-3p5m · 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