CVE-2019-9644
Improper Neutralization of Input During Web Page Generation in Jupyter Notebook
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
5.4
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
CVE-2019-9644- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
CVE-2019-9644- Updated
- 2026-11-02
EUVDEUVD-2019-0095 No score
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
EUVD-2019-0095- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hhx8-cr55-qcxx
5.1
Improper Neutralization of Input During Web Page Generation in Jupyter Notebook
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
GHSA-hhx8-cr55-qcxx- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
5.4
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
CVE-2019-9644- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-9644
5.4
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
DEBIAN-CVE-2019-9644- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
Show 6 moreShow less
OSVGHSA-hhx8-cr55-qcxx
5.1
Improper Neutralization of Input During Web Page Generation in Jupyter Notebook
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
GHSA-hhx8-cr55-qcxx- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVPYSEC-2026-2531
5.1
Improper Neutralization of Input During Web Page Generation in Jupyter Notebook
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
PYSEC-2026-2531- CVSS 4.0
- 5.1 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N - CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-9644
5.4
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
UBUNTU-CVE-2019-9644- CVSS 3.0
- 5.4 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
OSVMGASA-2022-0323 No score
Updated jupyter-notebook packages fix security vulnerability
It was discovered that Jupyter Notebook incorrectly handled certain notebooks. An attacker could possibly use this issue of lack of Content Security Policy in Nbconvert to perform cross-site scripting (XSS) attacks on the notebook server. (CVE-2018-19351)
It was discovered that Jupyter Notebook incorrectly handled certain SVG documents. An attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. (CVE-2018-21030)
It was discovered that Jupyter Notebook incorrectly filtered certain URLs on the login page. An attacker could possibly use this issue to perform open-redirect attack. (CVE-2019-10255)
It was discovered that Jupyter Notebook had an incomplete fix for CVE-2019-10255. An attacker could possibly use this issue to perform open-redirect attack using empty netloc. (CVE-2019-10856)
It was discovered that Jupyter Notebook incorrectly handled the inclusion of remote pages on Jupyter server. An attacker could possibly use this issue to perform cross-site script inclusion (XSSI) attacks. (CVE-2019-9644)
It was discovered that Jupyter Notebook incorrectly filtered certain URLs to a notebook. An attacker could possibly use this issue to perform open-redirect attack. (CVE-2020-26215)
It was discovered that Jupyter Notebook server access logs were not protected. An attacker having access to the notebook server could possibly use this issue to get access to steal sensitive information such as auth/cookies. (CVE-2022-24758)
It was discovered that Jupyter Notebook incorrectly configured hidden files on the server. An authenticated attacker could possibly use this issue to see unwanted sensitive hidden files from the server which may result in getting full access to the server. (CVE-2022-29238)
Moment.js: Path traversal in moment.locale (CVE-2022-24785)
moment: inefficient parsing algorithim resulting in DoS (CVE-2022-31129)
- Record
MGASA-2022-0323- Updated
- 2026-11-02
OSVPYSEC-2019-159 No score
An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before 5.7.6 allows inclusion of resources on malicious pages when visited by users who are authenticated with a Jupyter server. Access to the content of resources has been demonstrated with Internet Explorer through capturing of error messages, though not reproduced with other browsers. This occurs because Internet Explorer's error messages can include the content of any invalid JavaScript that was encountered.
- Record
PYSEC-2019-159- Updated
- 2026-11-02
OSVUSN-5585-1 No score
jupyter-notebook vulnerabilities
It was discovered that Jupyter Notebook incorrectly handled certain notebooks. An attacker could possibly use this issue of lack of Content Security Policy in Nbconvert to perform cross-site scripting (XSS) attacks on the notebook server. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-19351)
It was discovered that Jupyter Notebook incorrectly handled certain SVG documents. An attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-21030)
It was discovered that Jupyter Notebook incorrectly filtered certain URLs on the login page. An attacker could possibly use this issue to perform open-redirect attack. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-10255)
It was discovered that Jupyter Notebook had an incomplete fix for CVE-2019-10255. An attacker could possibly use this issue to perform open-redirect attack using empty netloc. (CVE-2019-10856)
It was discovered that Jupyter Notebook incorrectly handled the inclusion of remote pages on Jupyter server. An attacker could possibly use this issue to perform cross-site script inclusion (XSSI) attacks. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-9644)
It was discovered that Jupyter Notebook incorrectly filtered certain URLs to a notebook. An attacker could possibly use this issue to perform open-redirect attack. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-26215)
It was discovered that Jupyter Notebook server access logs were not protected. An attacker having access to the notebook server could possibly use this issue to get access to steal sensitive information such as auth/cookies. (CVE-2022-24758)
It was discovered that Jupyter Notebook incorrectly configured hidden files on the server. An authenticated attacker could possibly use this issue to see unwanted sensitive hidden files from the server which may result in getting full access to the server. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-29238)
- Record
USN-5585-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
jupyter-notebookPyPI |
through 5.7.5 | 5.7.6 |
notebookPyPI |
before 5.7.6 | 5.7.6 |
jupyter-notebookDebian:12 |
before 5.7.8-1 | 5.7.8-1 |
jupyter-notebookDebian:13 |
before 5.7.8-1 | 5.7.8-1 |
jupyter-notebookDebian:14 |
before 5.7.8-1 | 5.7.8-1 |
jupyter-notebookPyPI |
before 5.7.6, plus listed versions 4.0.0.dev |
5.7.6 |
notebookPyPI |
before 5.7.6, plus listed versions 0.0.04.0.04.0.14.0.24.0.4 Show 42 moreShow less4.0.54.0.64.1.04.2.04.2.0b14.2.14.2.24.2.34.3.04.3.14.3.24.4.04.4.15.0.05.0.0b15.0.0b25.0.0rc15.0.0rc25.1.05.1.0rc15.1.0rc25.1.0rc35.2.05.2.0rc15.2.15.2.1rc15.2.25.3.05.3.0rc15.3.15.4.05.4.15.5.05.5.0rc15.6.05.6.0rc15.7.05.7.15.7.25.7.35.7.45.7.5 |
5.7.6 |
jupyter-notebookMageia:8 From an advisory covering 10 CVEs |
before 6.4.12-1.mga8 | 6.4.12-1.mga8 |
python-send2trashMageia:8 From an advisory covering 10 CVEs |
before 1.8.0-1.mga8 | 1.8.0-1.mga8 |
python-nest-asyncioMageia:8 From an advisory covering 10 CVEs |
before 1.5.5-1.mga8 | 1.5.5-1.mga8 |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
jupyter-notebookUbuntu:18.04:LTS |
before 5.2.2-1ubuntu0.1, plus listed versions 4.2.3-45.1.0-25.2.1-25.2.2-1 |
5.2.2-1ubuntu0.1 |
jupyter-notebookUbuntu:18.04:LTS From an advisory covering 8 CVEs |
before 5.2.2-1ubuntu0.1, plus listed versions 4.2.3-45.1.0-25.2.1-25.2.2-1 |
5.2.2-1ubuntu0.1 |
jupyter-notebookUbuntu:20.04:LTS From an advisory covering 8 CVEs |
before 6.0.3-2ubuntu0.1, plus listed versions 5.7.8-16.0.0-16.0.0-26.0.2-16.0.3-16.0.3-2 |
6.0.3-2ubuntu0.1 |
jupyter-notebookUbuntu:22.04:LTS From an advisory covering 8 CVEs |
before 6.4.8-1ubuntu0.1, plus listed versions 6.2.0-16.4.5-26.4.5-36.4.5-46.4.8-1 |
6.4.8-1ubuntu0.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-9644 is a medium vulnerability (CVSS 5.4) in Jupyter Notebook, published March 12, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.53%, the 74th percentile. Fixed in jupyter-notebook 5.7.6.
References
github.com/jupyter/notebook/compare/f3f00df...05aa4b2
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UP5RLEES2JBBNSNLBR65XM6PCD4EMF7D
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMDPJBVXOVO6LYGAT46VZNHH6JKSCURO
nvd.nist.gov/vuln/detail/CVE-2019-9644
github.com/pypa/advisory-database/tree/main/vulns/notebook/PYSEC-2019-159.yaml
lists.fedoraproject.org/archives/list/[email protected]/message/UP5RLEES2JBBNSNLBR65XM6PCD4EMF7D
Show 24 moreShow less
lists.fedoraproject.org/archives/list/[email protected]/message/VMDPJBVXOVO6LYGAT46VZNHH6JKSCURO
github.com/advisories/GHSA-hhx8-cr55-qcxx
security-tracker.debian.org/tracker/CVE-2019-9644
github.com/jupyter/notebook
advisories.mageia.org/MGASA-2022-0323.html
bugs.mageia.org/show_bug.cgi?id=30789
bugs.mageia.org/show_bug.cgi?id=30664
ubuntu.com/security/notices/USN-5585-1
github.com/jupyter/notebook/security/advisories/GHSA-m87f-39q9-6f55
github.com/jupyter/notebook/security/advisories/GHSA-v7vq-3x77-87vg
lists.fedoraproject.org/archives/list/[email protected]/thread/ORJX2LF6KMPIHP6B2P6KZIVKMLE3LVJ5
pypi.org/project/jupyter-notebook
ubuntu.com/security/CVE-2019-9644
github.com/jupyter/notebook/commit/cfc335b76466ccf1538ce545b654b29b5ab0097c
github.com/jupyter/notebook/commit/b5105814fc41c6d789b317fa59f786bad7f9d798
github.com/jupyter/notebook/commit/bfaa61385729ed4fb453863053f9a79141f01119
cve.org/CVERecord?id=CVE-2019-9644
ubuntu.com/security/CVE-2018-19351
ubuntu.com/security/CVE-2018-21030
ubuntu.com/security/CVE-2019-10255
ubuntu.com/security/CVE-2019-10856
ubuntu.com/security/CVE-2020-26215
ubuntu.com/security/CVE-2022-24758
ubuntu.com/security/CVE-2022-29238