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CVE-2026-21966 Oracle Hospitality OPERA 5 Property Services

Affected softwareOracle Hospitality OPERA 5 Property Services
Affected versions5.6.19, 5.6.25, 5.6.26, 5.6.27
Severity6.1 Medium CVSS 3.1
Fixed inOracle Critical Patch Update January 2026
Published20 Jan 2026
Updated17 Jun 2026

Description

Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera). 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 Property Services. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Hospitality OPERA 5 Property Services, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Hospitality OPERA 5 Property Services accessible data as well as unauthorized read access to a subset of Oracle Hospitality OPERA 5 Property Services accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.22% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

This is a proprietary Oracle product. Oracle's security advisory is the source of public detail for this CVE.

  • Protection none
  • Action not pursued
  • Review automated Upstream data
  • Record active
Decided by Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read
Finding This CVE affects a known product, but nothing published names a fix and nothing published shows an exploit. That is a statement about the evidence, not about the defect — it does not mean the vulnerability is unimportant or unreachable, only that neither of the two things VRT can act on exists.

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update January 2026 ↗ CPU 2026-Q1 Oracle Hospitality Applications / Opera (5.6.19, 5.6.25, 5.6.26, 5.6.27)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Hospitality Applications Opera 5.6.19, 5.6.25, 5.6.26, 5.6.27 5.6.19 · 5.6.25 · 5.6.26 · 5.6.27

Products and versions

1 product, 4 version entries
SourceVendorProductSchemeAffected versions
nvd oracle hospitality opera 5 generic 5.6.19.23 · 5.6.25.17 · 5.6.26.10 · 5.6.27.4

References

URLTags
https://www.oracle.com/security-alerts/cpujan2026.html Vendor Advisory

Timeline

Published2026-01-20By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.