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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-34064 Detail

Description

Jinja is an extensible templating engine. The `xmlattr` filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, `/`, `>`, or `=`, as each would then be interpreted as starting a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. The fix for CVE-2024-22195 only addressed spaces but not other characters. Accepting keys as user input is now explicitly considered an unintended use case of the `xmlattr` filter, and code that does so without otherwise validating the input should be flagged as insecure, regardless of Jinja version. Accepting _values_ as user input continues to be safe. This vulnerability is fixed in 3.1.4.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/pallets/jinja/commit/0668239dc6b44ef38e7a6c9f91f312fd4ca581cb CVE, GitHub, Inc. Patch 
https://github.com/pallets/jinja/security/advisories/GHSA-h75v-3vvj-5mfj CVE, GitHub, Inc. Vendor Advisory 
https://lists.fedoraproject.org/archives/list/[email protected]/message/567XIGSZMABG6TSMYWD7MIYNJSUQQRUC/ CVE, GitHub, Inc. Mailing List 
https://lists.fedoraproject.org/archives/list/[email protected]/message/GCLF44KY43BSVMTE6S53B4V5WP3FRRSE/ CVE, GitHub, Inc. Mailing List 
https://lists.fedoraproject.org/archives/list/[email protected]/message/SSCBHIL6BYKR5NRCBXP4XMP2CEEKGFVS/ CVE, GitHub, Inc. Mailing List 
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZALNWE3TXPPHVPSI3AZ5CTMSTAVN5UMS/ CVE, GitHub, Inc. Mailing List 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-34064
NVD Published Date:
05/06/2024
NVD Last Modified:
09/08/2025
Source:
GitHub, Inc.