CVE-2026-33587

9.2 criticalEPSS 0.2%

Critical (9.2) in lfnovo open-notebook. EPSS 0.2% chance of exploitation in the next 30 days.

Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and subsequently OS commands) on the docker container via Server-Side Template Injection (SSTI) for user-created transformations.

Severity

CVSS 4.0

9.2 critical

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N

CVSS 3.1

10.0 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2026-05-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

lfnovo:open-notebook

References

https://github.com/lfnovo/open-notebook/security/advisories/GHSA-f35w-wx37-26q7

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