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.
Scores
CVSS v3
6.3
EPSS
0.0006
EPSS Percentile
18.2%
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