Description
A vulnerability was found in PySpur-Dev pyspur up to 0.1.18. It has been classified as critical. Affected is the function SingleLLMCallNode of the file backend/pyspur/nodes/llm/single_llm_call.py of the component Jinja2 Template Handler. The manipulation of the argument user_message leads to improper neutralization of special elements used in a template engine. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
References (4)
Core 4
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.313638
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.313638
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.593612
Issue Tracking exploit
issue-tracking
https://github.com/PySpur-Dev/pyspur/issues/289
Scores
CVSS v3
6.3
EPSS
0.0032
EPSS Percentile
23.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1336
CWE-791
Status
published
Products (20)
pypi/pyspur
0PyPI
PySpur-Dev/pyspur
0.1.0
PySpur-Dev/pyspur
0.1.1
PySpur-Dev/pyspur
0.1.10
PySpur-Dev/pyspur
0.1.11
PySpur-Dev/pyspur
0.1.12
PySpur-Dev/pyspur
0.1.13
PySpur-Dev/pyspur
0.1.14
PySpur-Dev/pyspur
0.1.15
PySpur-Dev/pyspur
0.1.16
... and 10 more
Published
Jun 23, 2025
Tracked Since
Feb 18, 2026