Authenticated data read and modification via undisclosed flaw
Published Aug 18, 2026 · Updated Aug 25, 2026
Improper authorization in Oracle Helidon 4.5.0 Imperative Web Server allows remote authenticated users to read and modify data via HTTP. Oracle has not disclosed the affected request path, authorization check, or untrusted input operation, and the public record names no finer mechanism. Low-privileged access is required; successful attacks can read a subset of accessible data and update, insert, or delete some accessible data.
Summary
What happened
Improper authorization in Oracle Helidon 4.5.0 Imperative Web Server allows remote authenticated users to read and modify data via HTTP. Oracle has not disclosed the affected request path, authorization check, or untrusted input operation, and the public record names no finer mechanism. Low-privileged access is required; successful attacks can read a subset of accessible data and update, insert, or delete some accessible data.
The record
- CVE
- CVE-2026-73881
- Published
- Aug 18, 2026
- Updated
- Aug 25, 2026
- Vendor
- Oracle Corporation
- Product
- Helidon
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 18, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 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=4.5.0
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
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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