CVE-2025-6518
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- EPSS probability
- 0.34%
- CWE
- CWE-1336, CWE-791
- Published
- 2025-06-23
- Last modified
- 2026-03-12
Affected products
- PySpur-Dev pyspur
- PySpur-Dev pyspur
- PySpur-Dev pyspur
- PySpur-Dev pyspur
- PySpur-Dev pyspur
- PySpur-Dev pyspur
- PySpur-Dev pyspur
- PySpur-Dev pyspur
Weakness type
Related vulnerabilities
- CVE-2026-19584 — Velociraptor VQL injection during notebook restore from backup
- CVE-2026-87021 — Tanium addressed an unauthorized code execution vulnerability in Comply.
- CVE-2026-33387 — Insufficient sanitization of Dashboards in Guardian/CMC before 26.3.0
- CVE-2026-75650 — Adobe Commerce | Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)
- CVE-2026-52762 — YesWiki: Authenticated (Admin) Server-Side Template Injection to Remote Code Execution via Bazar Semantic Templates
- CVE-2026-46636 — Twig: Sandbox method allowlist bypass via `Markup` subclass
- CVE-2026-85654 — Code injection in the CDK generator in Amazon awslabs.dynamodb-mcp-server
- CVE-2026-13297 — Security vulnerabilities have been addressed in IBM Verify Identity Access and IBM Security Verify Access