TI-2026-17666 Aliases CVE-2026-21967 GHSA-jqm3-f272-rrx3

Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality…

MEDIUM 43Published 2026-01-20 · Updated 2026-01-21

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality Applications (component: Opera Servlet). Supported versions that are affected are 5.6.19.23, 5.6.25.17, 5.6.26.10 and 5.6.27.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hospitality OPERA 5 accessible data as well as unauthorized update, insert or delete access to some of Oracle Hospitality OPERA 5 accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Hospitality OPERA 5. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00344 28th 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: 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 Hospitality OPERA 5	5.6.19.23; 5.6.25.17; 5.6.26.10; 5.6.27.4	—	No fix listed	CNA

Oracle Hospitality OPERA 5 VendorOracle Affected 5.6.19.23; 5.6.25.17; 5.6.26.10; 5.6.27.4 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:oracle:hospitality_opera_5:5.6.19.23:::::::*	5.6.19.23	Vulnerable	Oracle
cpe:2.3:a:oracle:hospitality_opera_5:5.6.25.17:::::::*	5.6.25.17	Vulnerable	Oracle
cpe:2.3:a:oracle:hospitality_opera_5:5.6.26.10:::::::*	5.6.26.10	Vulnerable	Oracle
cpe:2.3:a:oracle:hospitality_opera_5:5.6.27.4:::::::*	5.6.27.4	Vulnerable	Oracle

cpe:2.3:a:oracle:hospitality_opera_5:5.6.19.23:*:*:*:*:*:*:* Versions 5.6.19.23 Vulnerable ·Oracle
cpe:2.3:a:oracle:hospitality_opera_5:5.6.25.17:*:*:*:*:*:*:* Versions 5.6.25.17 Vulnerable ·Oracle
cpe:2.3:a:oracle:hospitality_opera_5:5.6.26.10:*:*:*:*:*:*:* Versions 5.6.26.10 Vulnerable ·Oracle
cpe:2.3:a:oracle:hospitality_opera_5:5.6.27.4:*:*:*:*:*:*:* Versions 5.6.27.4 Vulnerable ·Oracle

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-21967
2026-10-03 Alias added: GHSA-jqm3-f272-rrx3

References

Advisory 1

Oracle Advisory

TI-2020-13278 Expression language injection in Apache Struts KEVCVSS 3.1CRITICAL 9.8
TI-2019-07411 Deserialization of untrusted data in Apache Commons Beanutils CVSS 3.1HIGH 7.3
TI-2018-01190 XML external entity injection in Apache log4net CVSS 3.1CRITICAL 9.8
TI-2025-15507 Uncontrolled resource consumption in Oracle Hospitality OPERA 5 CVSS 3.1CRITICAL 9.1
TI-2019-13109 Server-side request forgery in Apache Batik CVSS 3.1HIGH 7.5
TI-2024-13962 Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality… CVSS 3.1CRITICAL 9.0

See all 9 →

Sources

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