yudao-cloud < 2026.06 - BPM Module Broken Access Control via process-instance API
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
yudao-cloud before 2026.06 contains a broken access control vulnerability in the BPM module that allows any authenticated user to access arbitrary process instance records by supplying a caller-controlled process-instance identifier to an unprotected endpoint lacking the @PreAuthorize annotation. Attackers can query any process-instance identifier through the unguarded GET endpoint to read sensitive workflow data including submitted form variables, approver identities, approval and rejection comments, and process BPMN XML without ownership or tenant party verification.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA yudao-cloud (YunaiV) Fixed in 2026.06
Timeline
- 2026-10-02 Threatist record created from CVE-2026-58448
- 2026-10-03 Alias added: GHSA-f6rh-2m88-w48m
References
Exploit 1
Patch 1
More YunaiV vulnerabilities
- TI-2026-80126 Improper authentication in YunaiV ruoyi-vue-pro SMS code verification CVSS 4.0MEDIUM 6.9
- TI-2026-11453 Path traversal in YunaiV ruoyi-vue-pro CVSS 4.0MEDIUM 6.9
- TI-2026-06792 YunaiV yudao-cloud Ruoyi-Vue-Pro JwtAuthenticationTokenFilter.java doFilterInternal improper authentication CVSS 4.0MEDIUM 6.9
- TI-2026-04492 YunaiV yudao-cloud get-by-website sql injection CVSS 4.0MEDIUM 6.9
- TI-2026-80085 Authorization bypass in yudao-cloud lets users evade data scope CVSS 4.0HIGH 7.1
- TI-2026-06761 YunaiV yudao-cloud OAuth2TokenServiceImpl.java getAccessToken improper authentication CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-58448 · CVE Program
- CVE-2026-58448 · NVD
- FIRST EPSS
- GHSA-f6rh-2m88-w48m · GitHub Advisory Database · CC BY 4.0
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