CVE-2018-19351: jupyter notebook
Vulnerability summary
CVE-2018-19351 is a medium (CVSS 6.1) vulnerability in jupyter notebook. EPSS estimates a 1.51% chance of exploitation in the next 30 days, higher than 74.4% of scored vulnerabilities.
Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 18-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Jupyter Notebook before 5.7.1 allows XSS via an untrusted notebook because nbconvert responses are considered to have the same origin as the notebook server. In other words, nbconvert endpoints can execute JavaScript with access to the server API. In notebook/nbconvert/handlers.py, NbconvertFileHandler and NbconvertPostHandler do not set a Content Security Policy to prevent this.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · PypiEcosystem advisory · calculated6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.51%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.51% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- jupyter-notebook< 5.7.4-1
Jupyter1 product
- notebook< 5.7.1
PyPI1 product
- notebook< 107a89fce5f413fb5728c1c5d2c7788e1fb17491 | < 5.7.1
Ubuntu1 product
- jupyter-notebook< 5.2.2-1ubuntu0.1
4 vendors · 4 products
References
14 links- groups.google.com/forum/X Refsource MISC
- github.com/jupyter/notebook/blob/master/docs/source/changelog.rstX Refsource MISCRelease NotesWEBREPORT
- github.com/jupyter/notebook/commit/107a89fce5f413fb5728c1c5d2c7788e1fb17491X Refsource MISCPatchThird Party AdvisoryWEBFIXREPORT
- github.com/jupyter/notebookPACKAGE