Unauthenticated user impersonation via mock-token trust
Published May 3, 2026 · Updated May 3, 2026
Authentication bypass in YunaiV yudao-cloud 3.0 through 3.8.0 allows remote attackers to impersonate arbitrary users via HTTP requests. JwtAuthenticationTokenFilter.doFilterInternal accepts the caller-controlled mock-token header, extracts its user ID, and creates an authenticated security context without validating a JWT. No prior account or user interaction is required; a chosen privileged user ID grants that account's API permissions, including administrative reads and writes.
Summary
What happened
Authentication bypass in YunaiV yudao-cloud 3.0 through 3.8.0 allows remote attackers to impersonate arbitrary users via HTTP requests. JwtAuthenticationTokenFilter.doFilterInternal accepts the caller-controlled mock-token header, extracts its user ID, and creates an authenticated security context without validating a JWT. No prior account or user interaction is required; a chosen privileged user ID grants that account's API permissions, including administrative reads and writes.
The record
- CVE
- CVE-2026-7710
- Published
- May 3, 2026
- Updated
- May 3, 2026
- Vendor
- YunaiV
- Product
- yudao-cloud
- Classifications
- CWE-287, CAPEC-112, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 3, 2026CVE publishedPublication date reported by the CVE source.
- May 3, 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=3.0
- Affected versionversion=3.1
- Affected versionversion=3.2
- Affected versionversion=3.3
- Affected versionversion=3.4
- Affected versionversion=3.5
- Affected versionversion=3.6
- Affected versionversion=3.7
- Affected versionversion=3.8.0
What conditions does exploitation require?
What is affected?
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
- Ruoyi-Vue-Pro Mock Token Authentication Bypass PoCproof of concept · unverified
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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