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Fencer Intel
critical 9.8

CVE-2014-3429 json

IPython Notebook vulnerable to improper validation of the origin of websocket requests

published 2014-08-07 12 y ago modified 2026-06-17 4 mo ago also GHSA-75cw-5cgv-g853 , PYSEC-2014-21 , EUVD-2014-0022

cvss
9.8
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

IPython Notebook 0.12 through 1.x before 1.2 does not validate the origin of websocket requests, which allows remote attackers to execute arbitrary code by leveraging knowledge of the kernel id and a crafted page.

Patch / fix

  • pypi ipython 1.2.0
  • ipython Debian 14, Debian 13, Debian 12 1.2.0~rc1-1

debian advisories DEBIAN-CVE-2014-3429

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-3429 updated cvss 4.3

ipython: cross-domain websocket hijacking vulnerability

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.69% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi ipython
>=0.12, <1.2.0
1.2.0

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.