Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in notebook
CVE-2021-32798

10CRITICAL

Key Information:

Vendor

Jupyter

Status
Notebook
Vendor
CVE Published:
9 August 2021

What is CVE-2021-32798?

The Jupyter notebook is a web-based notebook environment for interactive computing. In affected versions untrusted notebook can execute code on load. Jupyter Notebook uses a deprecated version of Google Caja to sanitize user inputs. A public Caja bypass can be used to trigger an XSS when a victim opens a malicious ipynb document in Jupyter Notebook. The XSS allows an attacker to execute arbitrary code on the victim computer using Jupyter APIs.

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Deploy the Patch

Affected Version(s)

notebook >= 6.0.0, < 6.4.1 < 6.0.0, 6.4.1

notebook < 5.7.11 < 5.7.11

References

https://github.com/jupyter/notebook/security/advisories/G...
x_refsource_CONFIRM
https://github.com/jupyter/notebook/commit/79fc76e890a8ec...
x_refsource_MISC

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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