{"id":"CVE-2025-6518","summary":"PySpur-Dev pyspur Jinja2 Template single_llm_call.py SingleLLMCallNode special elements used in a template engine","details":"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.","aliases":["GHSA-8gff-cf92-72pv","PYSEC-2026-1844"],"modified":"2026-08-12T03:51:39.333967463Z","published":"2025-06-23T19:00:11.222Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6518.json","cna_assigner":"VulDB","cwe_ids":["CWE-1336","CWE-791"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6518.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6518"},{"type":"ADVISORY","url":"https://vuldb.com/?id.313638"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.593612"},{"type":"REPORT","url":"https://github.com/PySpur-Dev/pyspur/issues/289"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.313638"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pyspur-dev/pyspur","events":[{"introduced":"5fbd48fd0f7c9fd28495ffc3f087b72bb57f3c82"},{"last_affected":"d125f5307921f0dc00e8bea452776aeaf7df9b0a"}],"database_specific":{"extracted_events":[{"introduced":"0.1.0"},{"last_affected":"0.1.0"},{"introduced":"0.1.1"},{"last_affected":"0.1.1"},{"introduced":"0.1.2"},{"last_affected":"0.1.2"},{"introduced":"0.1.3"},{"last_affected":"0.1.3"},{"introduced":"0.1.4"},{"last_affected":"0.1.4"},{"introduced":"0.1.5"},{"last_affected":"0.1.5"},{"introduced":"0.1.6"},{"last_affected":"0.1.6"},{"introduced":"0.1.7"},{"last_affected":"0.1.7"},{"introduced":"0.1.8"},{"last_affected":"0.1.8"},{"introduced":"0.1.9"},{"last_affected":"0.1.9"},{"introduced":"0.1.10"},{"last_affected":"0.1.10"},{"introduced":"0.1.11"},{"last_affected":"0.1.11"},{"introduced":"0.1.12"},{"last_affected":"0.1.12"},{"introduced":"0.1.13"},{"last_affected":"0.1.13"},{"introduced":"0.1.14"},{"last_affected":"0.1.14"},{"introduced":"0.1.15"},{"last_affected":"0.1.15"},{"introduced":"0.1.16"},{"last_affected":"0.1.16"},{"introduced":"0.1.17"},{"last_affected":"0.1.17"},{"introduced":"0.1.18"},{"last_affected":"0.1.18"}],"source":"AFFECTED_FIELD"}}],"versions":["0.1.0","0.1.1","0.1.10","0.1.11","0.1.12","0.1.13","0.1.14","0.1.15","0.1.16","0.1.17","0.1.18","0.1.2","0.1.3","0.1.4","0.1.5","0.1.6","0.1.7","0.1.8","0.1.9","v0.1.18","v0.1.17","v0.1.16","v0.1.15","v0.1.14","v0.1.13","v0.1.12","v0.1.11","v0.1.10","v0.1.9","v0.1.8","v0.1.7","v0.1.6","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6518.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}