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TI-2026-77555 Aliases CVE-2026-91511GHSA-m5wp-q7wg-x2pm

Improper access control in Oracle E-Business Suite Purchasing

Priority LOW 31CWE-284Published · Updated

Key facts

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

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

Summary

Oracle Purchasing in Oracle E-Business Suite (component: Internal Operations) is affected in supported versions 12.2.3 through 12.2.15. Improper access control (CWE-284) lets a low privileged attacker with network access over HTTP compromise Oracle Purchasing. The attack is difficult to exploit, and it may significantly impact additional products, enabling unauthorized access to critical data or complete access to all accessible data, plus unauthorized update, insert or delete access to some data.

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

Description from the CNA

Vulnerability in the Oracle Purchasing product of Oracle E-Business Suite (component: Internal Operations). 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 Oracle Purchasing. While the vulnerability is in Oracle Purchasing, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Purchasing accessible data as well as unauthorized update, insert or delete access to some of Oracle Purchasing accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0023 13th 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
Partial

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 Purchasing12.2.3 – 12.2.15—No fix listedCNA
  • Oracle Purchasing VendorOracle Affected 12.2.3 – 12.2.15 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:oracle:purchasing:*:*:*:*:*:*:*:*12.2.3 – 12.2.15VulnerableOracle
  • cpe:2.3:a:oracle:purchasing:*:*:*:*:*:*:*:* Versions 12.2.3 – 12.2.15 Vulnerable ·Oracle

Remediation

The sources list no fixed version for Oracle Purchasing.

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 Purchasing — oracle.com/security-alerts/cpuoct2026.html

    6 records Highest priority Priority MEDIUM 1 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2026-77866 Improper access control in Oracle Purchasing enables takeoverPriority MEDIUM 41
    • TI-2026-77868 Incorrect authorization in Oracle Purchasing exposes critical dataPriority LOW 29
    • TI-2026-77867 Cross-site request forgery in Oracle E-Business Suite PurchasingPriority LOW 26

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-91511
  2. 2026-10-21 Alias added: GHSA-m5wp-q7wg-x2pm
  3. 2026-10-22 Priority changed: MEDIUM → LOW
  4. 2026-10-26 Weakness changed · CISA ADP
  5. 2026-10-26 CISA SSVC decision points changed

References

Advisory 1

  • TI-2026-77866 Improper access control in Oracle Purchasing enables takeover CVSS 3.1HIGH 8.8
  • TI-2026-59525 Improper privilege management in Oracle Purchasing CVSS 3.1HIGH 8.8
  • TI-2026-49641 Improper access control in Oracle Purchasing CVSS 3.1HIGH 8.8
  • TI-2026-49640 Improper access control in Oracle Purchasing CVSS 3.1HIGH 7.5
  • TI-2021-01937 Vulnerability in the Oracle Purchasing product of Oracle E-Business Suite (component… CVSS 3.1HIGH 8.1
  • TI-2026-59624 Improper access control in Oracle Purchasing CVSS 3.1HIGH 8.1
See all 17 →

Sources