CVE-2026-33587

critical · 9.2

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.

9.2

CVSS

0.2%

EPSS (exploit prob.)

14th

EPSS percentile

2026-05-07

Published

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/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

Weaknesses

CWE-20

Affected products

Vendor	Product	Affected versions
lfnovo	open-notebook	< 1.8.4

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-33587