fastapi-code-generator creates FastAPI applications from OpenAPI files.
fastapi-code-generator creates FastAPI applications from OpenAPI files. Prior to 0.8.1, the generator inserts an OpenAPI path into a generated @app.get(...) route decorator as a single-quoted generated route string without escaping embedded quotes. An attacker-controlled or attacker-influenced OpenAPI path can close the string and inject a valid Python expression into the decorator argument. Syntax-breaking input only causes generation to fail, but syntactically valid generated code executes with the application's or CI process's privileges when the generated module is imported and the decorator is evaluated. This OpenAPI path sink is distinct from the project's separate operation-summary do
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Koxudaxi
- Product
- fastapi-code-generator
- CVSS v4.0
- 9.3 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Fix
- available
- Weakness
- CWE-94, CWE-116
- Exposure class
- Developer platform
- NVD status
- Deferred
Why it ranks 43 (Notable)
- CVSS v4.0 9.3 critical
- Product class: developer platform
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-63471 on this site · NVD · CVE.org · Vulnpedia
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