CVE-2014-3429: IPython Notebook 0.12 through 1.x before 1.2 does not validate the origin of websocket requests, which allows

This month

MEDIUM 6.8MITIGATEDOWNGRADEMITIGATE

CVE-2014-3429 is a medium-severity flaw (CVSS 6.8) affecting opensuse, ipython notebook, mageia. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

EPSS top 8%: very likely to be exploited

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	4.7% (top 8%)
CISA exploited list	No
Weakness	CWE-94
Published	2014-08-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ipython · mageia · opensuse

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-08-07 11:13 UTCPublished CVE record published
2026-06-17 00:08 UTCUpdated Record last modified

opensuse opensuse MITIGATE

Affected: 13.1 · 13.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 13.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ipython ipython notebook DOWNGRADE

Affected: 0.12 · 0.12.1 · 0.13 · 0.13.1 · 0.13.2 · 1.0.0 · 1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.12

1. Check installed version

apt-cache policy ipython-notebook || rpm -q ipython-notebook || ipython-notebook --version

2. No fixed release: DOWNGRADE to a release before 0.12 (Debian / Ubuntu)

apt-cache madison ipython-notebook sudo apt install ipython-notebook=<VERSION_BEFORE_0.12> sudo apt-mark hold ipython-notebook

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ipython-notebook sudo dnf downgrade ipython-notebook-<VERSION_BEFORE_0.12> sudo dnf versionlock add ipython-notebook

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

mageia mageia MITIGATE

Affected: 3.0 · 4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-3429?

opensuse: mitigate or apply the listed mitigation; ipython notebook: downgrade or apply the listed mitigation; mageia: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-3429 being exploited?

CVE-2014-3429 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-3429 affect?

CVE-2014-3429 affects opensuse, ipython notebook, mageia. Severity is medium (CVSS 6.8). 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.

How urgent is CVE-2014-3429?

Priority 47/100. EPSS top 8%: very likely to be exploited

Related CVEs

CVE-2015-8126 HIGH 7.5 UPGRADE MITIGATE Multiple buffer overflows in the (1) png_set_PLTE and (2) png_get_PLTE functions in libpng before 1.0.64, 1.1.
CVE-2015-7575 MEDIUM 5.9 UPGRADE MITIGATE Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ES
CVE-2012-5568 MEDIUM 5.0 UPGRADE MITIGATE Apache Tomcat through 7.0.x allows remote attackers to cause a denial of service (daemon outage) via partial H
CVE-2016-9841 CRITICAL 9.8 UPGRADE MITIGATE inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging impro
CVE-2016-9840 HIGH 8.8 UPGRADE UPGRADE inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging impr

References

← Back to latest CVEs