CVE-2026-59092
CVE-2026-59092 is a high-severity vulnerability with a CVSS 3.x base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-489.
Key facts
- Severity: High (CVSS 3.x base score 7.7)
- CVSS v4: 7.0
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-489
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-59092?
- 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.
- How severe is CVE-2026-59092?
- CVE-2026-59092 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
- Is CVE-2026-59092 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-59092?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-59092 published?
- CVE-2026-59092 was published on 2026-07-02 and last updated on 2026-07-06.
References
- https://github.com/juicedata/juicefs/commit/a46979cdd4082217081ee99b931ddc53d038e47a
- https://github.com/juicedata/juicefs/issues/7213
- https://github.com/juicedata/juicefs/pull/7214
- https://www.vulncheck.com/advisories/juicefs-authentication-bypass-via-pprof-and-metrics-endpoints
Other CWE-489 vulnerabilities
- CVE-2023-4804 — Critical (CVSS 10.0): An unauthorized user could access debug features in Quantum HD Unity products that were accidentally exposed.
- CVE-2026-49188 — Critical (CVSS 9.8): The ai_cmd utility executes with full root permissions. It pipes socket inputs directly to popen(), paving the way…
- CVE-2024-46873 — Critical (CVSS 9.8): Multiple SHARP routers leave the hidden debug function enabled. An arbitrary OS command may be executed with the root…
- CVE-2024-21785 — Critical (CVSS 9.8): A leftover debug code vulnerability exists in the Telnet Diagnostic Interface functionality of AutomationDirect P3-550E…
- CVE-2024-32047 — Critical (CVSS 9.8): Hard-coded credentials for the CyberPower PowerPanel test server can be found in the production code. This might…
- CVE-2024-28008 — Critical (CVSS 9.8): Active Debug Code in NEC Corporation Aterm WG1800HP4, WG1200HS3, WG1900HP2, WG1200HP3, WG1800HP3, WG1200HS2, WG1900HP,…