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CVE-2026-59092— JuiceFS - Authentication Bypass via pprof and metrics Endpoints

Quick assessment

Affected
juicedata juicefs
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

JuiceFS JuiceFS是JuiceFS公司开源的一款基于 Redis 和对象存储（如 S3）构建的高性能分布式 POSIX 文件系统，专为云原生环境设计，可让海量云存储像本地存储一样高效使用。 JuiceFS 1.3.1及之前版本存在调试信息泄露漏洞，该漏洞源于共享的http.DefaultServeMux上不正确的处理程序注册，允许未经身份验证的远程攻击者访问敏感调试和metrics端点，请求/debug/pprof/cmdline端点获取包含数据库凭据的进程命令行，从而获得文件系统元数据的完全

CVSS 7.7 · High EPSS 0.66% · P51

Affected Version Matrix 2

VendorProduct Version RangeStatus
juicedata juicefs ≤ 1.3.1 affected
a46979cdd4082217081ee99b931ddc53d038e47a unaffected
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I. Basic Information for CVE-2026-59092

Vulnerability Information
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Vulnerability Title
JuiceFS - Authentication Bypass via pprof and metrics Endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
JuiceFS through 1.3.1, fixed in commit a46979c, contains an authentication bypass vulnerability that allows unauthenticated remote attackers to access sensitive debug and metrics endpoints by exploiting improper handler registration on the shared http.DefaultServeMux. Attackers can request the /debug/pprof/cmdline endpoint to obtain the process command line containing metadata engine connection strings with database credentials, granting full read/write access to filesystem metadata, while other pprof handlers leak internal state and profiling handlers enable denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
遗留的调试代码
Source: CVE Program / CVE List V5
Vulnerability Title
JuiceFS 调试信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JuiceFS JuiceFS是JuiceFS公司开源的一款基于 Redis 和对象存储（如 S3）构建的高性能分布式 POSIX 文件系统，专为云原生环境设计，可让海量云存储像本地存储一样高效使用。 JuiceFS 1.3.1及之前版本存在调试信息泄露漏洞，该漏洞源于共享的http.DefaultServeMux上不正确的处理程序注册，允许未经身份验证的远程攻击者访问敏感调试和metrics端点，请求/debug/pprof/cmdline端点获取包含数据库凭据的进程命令行，从而获得文件系统元数据的完全
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
juicedata juicefs 0 ~ 1.3.1 -

II. Public POCs for CVE-2026-59092

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9536 chars
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III. Intelligence Information for CVE-2026-59092

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Patches & Fixes for CVE-2026-59092 (2)

Vendor Advisories for CVE-2026-59092 (2)

IV. Related Vulnerabilities

Same product: juicefs
Same vendor: juicedata
Same weakness: CWE-489

V. Comments for CVE-2026-59092

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