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TI-2026-77533 Aliases CVE-2026-91483GHSA-gmj8-9x89-4phx

Deserialization flaw in Oracle Outside In Technology allows takeover

Priority LOW 36CWE-502Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
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-502.

Summary

Oracle Outside In Technology, part of Oracle Fusion Middleware, is affected in version 8.5.8. The Outside In Core component deserializes untrusted data (CWE-502), which lets an attacker take over the product. An unauthenticated attacker with logon to the infrastructure where the product runs can exploit it, but successful attacks require a person other than the attacker to interact.

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

Description from the CNA

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Outside In Technology executes to compromise Oracle Outside In Technology. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Outside In Technology. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0025 16th 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 Outside In Technology8.5.8—No fix listedCNA
  • Oracle Outside In Technology VendorOracle Affected 8.5.8 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:oracle:outside_in_technology:8.5.8:*:*:*:*:*:*:*8.5.8VulnerableOracle
  • cpe:2.3:a:oracle:outside_in_technology:8.5.8:*:*:*:*:*:*:* Versions 8.5.8 Vulnerable ·Oracle

Remediation

The sources list no fixed version for Oracle Outside In Technology.

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 Outside In Technology — oracle.com/security-alerts/cpuoct2026.html

    30 records Highest priority Priority MEDIUM 8 MEDIUM, 22 LOW

    Other records, highest priority first

    • TI-2026-77400 Improper access control in Oracle Outside In TechnologyPriority MEDIUM 45
    • TI-2026-77413 Improper access control in Oracle Outside In TechnologyPriority MEDIUM 43
    • TI-2026-77412 Sensitive data exposure in Oracle Outside In Clean Content SDKPriority MEDIUM 43
    Show all 30 records → Advisory →

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-91483
  2. 2026-10-21 Alias added: GHSA-gmj8-9x89-4phx
  3. 2026-10-22 Priority changed: MEDIUM → LOW
  4. 2026-10-24 Weakness changed · CISA ADP
  5. 2026-10-24 CISA SSVC decision points changed

References

Advisory 1

  • TI-2018-02294 Vulnerability in the Oracle Outside In Technology component of Oracle Fusion Middleware… CVSS 3.0HIGH 7.1
  • TI-2017-02466 Vulnerability in the Oracle Outside In Technology component of Oracle Fusion Middleware… CVSS 3.0CRITICAL 9.8
  • TI-2015-05086 Unspecified vulnerability in the Oracle Outside In Technology component in Oracle Fusion… CVSS 2.0HIGH 10.0
  • TI-2015-05085 Unspecified vulnerability in the Oracle Outside In Technology component in Oracle Fusion… CVSS 2.0HIGH 10.0
  • TI-2015-05084 Unspecified vulnerability in the Oracle Outside In Technology component in Oracle Fusion… CVSS 2.0HIGH 10.0
  • TI-2020-09353 In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as… CVSS 3.1CRITICAL 9.8
See all 214 →

Sources

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