CVE-2026-59092
JuiceFS - Authentication Bypass via pprof and metrics Endpoints
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.
INFO
Published Date :
July 2, 2026, 8:17 p.m.
Last Modified :
Aug. 17, 2026, 3:40 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update JuiceFS to the latest version.
- Apply the fix for commit a46979c.
- Restrict access to debug and metrics endpoints.
- Review handler registration in http.DefaultServeMux.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-59092.
| URL | Resource |
|---|---|
| https://github.com/juicedata/juicefs/commit/a46979cdd4082217081ee99b931ddc53d038e47a | Patch |
| https://github.com/juicedata/juicefs/issues/7213 | Vendor Advisory |
| https://github.com/juicedata/juicefs/pull/7214 | Issue Tracking |
| https://www.vulncheck.com/advisories/juicefs-authentication-bypass-via-pprof-and-metrics-endpoints | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-59092 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-59092
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-59092 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-59092 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:juicedata:juicefs:*:*:*:*:*:*:*:* versions up to (including) 1.3.1 Added Reference Type VulnCheck: https://github.com/juicedata/juicefs/commit/a46979cdd4082217081ee99b931ddc53d038e47a Types: Patch Added Reference Type VulnCheck: https://github.com/juicedata/juicefs/issues/7213 Types: Vendor Advisory Added Reference Type VulnCheck: https://github.com/juicedata/juicefs/pull/7214 Types: Issue Tracking Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/juicefs-authentication-bypass-via-pprof-and-metrics-endpoints Types: Third Party Advisory -
CVE Modified by [email protected]
Jul. 14, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://github.com/juicedata/juicefs', 'vendor': 'juicedata', 'product': 'juicefs', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.3.1'}, {'status': 'unaffected', 'version': 'a46979cdd4082217081ee99b931ddc53d038e47a', 'versionType': 'git'}], 'defaultStatus': 'unaffected'}] [{'repo': 'https://github.com/juicedata/juicefs', 'vendor': 'juicedata', 'product': 'juicefs', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.3.1'}, {'status': 'unaffected', 'version': 'a46979cdd4082217081ee99b931ddc53d038e47a', 'versionType': 'git'}], 'packageURL': 'pkg:github/juicedata/juicefs', 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 06, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-59092', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-06T16:37:40.183091Z'} -
New CVE Received by [email protected]
Jul. 02, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/juicedata/juicefs', 'vendor': 'juicedata', 'product': 'juicefs', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.3.1'}, {'status': 'unaffected', 'version': 'a46979cdd4082217081ee99b931ddc53d038e47a', 'versionType': 'git'}], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Added CWE CWE-489 Added Reference https://github.com/juicedata/juicefs/commit/a46979cdd4082217081ee99b931ddc53d038e47a Added Reference https://github.com/juicedata/juicefs/issues/7213 Added Reference https://github.com/juicedata/juicefs/pull/7214 Added Reference https://www.vulncheck.com/advisories/juicefs-authentication-bypass-via-pprof-and-metrics-endpoints