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CVE-2026-21967 Oracle Hospitality OPERA 5

Affected softwareOracle Hospitality OPERA 5
Affected versions5.6.19, 5.6.25, 5.6.26, 5.6.27
Severity8.6 High CVSS 3.1
Fixed inOracle Critical Patch Update January 2026
Published20 Jan 2026
Updated17 Jun 2026

Description

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).

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 0.34% 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 Servlet (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 Servlet 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.