Credential disclosure via attacker-controlled report URL
Published Jan 20, 2026 · Updated Jan 20, 2026
SSRF in Oracle Hospitality OPERA 5 versions 5.6.19.23, 5.6.25.17, 5.6.26.10, and 5.6.27.4 allows remote attackers to disclose credentials. OperaServlet's callreport function opens the attacker-controlled urladdress and, when requested, sends plaintext database credentials in the POST body before reflecting the response. No authentication or user interaction is required; reusing the credentials requires network access to the database port.
Summary
What happened
SSRF in Oracle Hospitality OPERA 5 versions 5.6.19.23, 5.6.25.17, 5.6.26.10, and 5.6.27.4 allows remote attackers to disclose credentials. OperaServlet's callreport function opens the attacker-controlled urladdress and, when requested, sends plaintext database credentials in the POST body before reflecting the response. No authentication or user interaction is required; reusing the credentials requires network access to the database port.
The record
- CVE
- CVE-2026-21967
- Published
- Jan 20, 2026
- Updated
- Jan 20, 2026
- Vendor
- Oracle Corporation
- Product
- Oracle Hospitality OPERA Property Management
- Classifications
- T1190, T1212
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 20, 2026CVE publishedPublication date reported by the CVE source.
- Jan 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.6.19.23
- Affected versionversion=5.6.25.17
- Affected versionversion=5.6.26.10
- Affected versionversion=5.6.27.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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