Authenticated data disclosure via inherited-property dispatch
Published Feb 9, 2026 · Updated Feb 9, 2026
Privilege escalation in Cube Core allows remote authenticated users to read protected data via crafted WebSocket requests. The WebSocket subscription server checked method names through an inherited-property lookup and then dynamically invoked the matching API gateway member, so names outside the allowlist reached unintended handlers. A valid API token and network access to the WebSocket endpoint are required; the published assessment limits the resulting impact to confidentiality.
Summary
What happened
Privilege escalation in Cube Core allows remote authenticated users to read protected data via crafted WebSocket requests. The WebSocket subscription server checked method names through an inherited-property lookup and then dynamically invoked the matching API gateway member, so names outside the allowlist reached unintended handlers. A valid API token and network access to the WebSocket endpoint are required; the published assessment limits the resulting impact to confidentiality.
The record
- CVE
- CVE-2026-25958
- Published
- Feb 9, 2026
- Updated
- Feb 9, 2026
- Vendor
- Cube Dev
- Product
- Cube Core
- Classifications
- CWE-807, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 9, 2026CVE publishedPublication date reported by the CVE source.
- Feb 9, 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=>= 0.27.19, < 1.0.14
- Affected versionversion=>= 1.1.0, < 1.4.2
- Affected versionversion=>= 1.5.0, < 1.5.13
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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