Unvalidated state injection via unknown component types
Published Sep 16, 2026 · Updated Sep 16, 2026
Improper input validation in A2UI 0.10.0 through 0.10.6 allows remote attackers to store unvalidated component properties. The v0.9 processMessages path skips envelope-schema validation and commits unknown component types and their attacker-controlled properties to componentsModel. A malicious agent must deliver an updateComponents message; current renderers display unknown types as nothing, so the demonstrated consequence is exposure of unvalidated state to consumers rather than code execution.
Summary
What happened
Improper input validation in A2UI 0.10.0 through 0.10.6 allows remote attackers to store unvalidated component properties. The v0.9 processMessages path skips envelope-schema validation and commits unknown component types and their attacker-controlled properties to componentsModel. A malicious agent must deliver an updateComponents message; current renderers display unknown types as nothing, so the demonstrated consequence is exposure of unvalidated state to consumers rather than code execution.
The record
- CVE
- CVE-2026-92217
- Published
- Sep 16, 2026
- Updated
- Sep 16, 2026
- Vendor
- A2UI Project
- Product
- A2UI
- Classifications
- CWE-20
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 16, 2026CVE publishedPublication date reported by the CVE source.
- Sep 16, 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=0.10.0
- Affected versionversion=0.10.1
- Affected versionversion=0.10.2
- Affected versionversion=0.10.3
- Affected versionversion=0.10.4
- Affected versionversion=0.10.5
- Affected versionversion=0.10.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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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
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Technologies
Your stack
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Your stack
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