CVE-2026-63470
validatedZero produced an exploit or a check.GHSA-h667-4jj2-cgv4 ↗EUVD-2026-116145 ↗
description
fastapi-code-generator versions before 0.8.1 mishandle OpenAPI operation summaries when producing FastAPI route handlers. An attacker who can control or influence a summary may cause code to run with the server process's privileges when the generated route is invoked.
mitigation
Upgrade fastapi-code-generator to version 0.8.1 or later. Until upgraded, do not generate applications from OpenAPI specifications whose operation summaries are not trusted.
fixed in 0.8.1
outcome
Contextual check: a technique exists and was validated, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-11-03 19:13Zcve_org: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/CVE-2026-63470
{ "etk_id": "ETK-2026-3400", "cve_id": "CVE-2026-63470", "display_id": "CVE-2026-63470", "ghsa_id": "GHSA-h667-4jj2-cgv4", "euvd_id": "EUVD-2026-116145", "status": "published", "anchor_state": "anchored", "title": "Code injection in fastapi-code-generator handler docstrings", "summary": "fastapi-code-generator versions before 0.8.1 mishandle OpenAPI operation summaries when producing FastAPI route handlers. An attacker who can control or influence a summary may cause code to run with the server process's privileges when the generated route is invoked.", "mitigation": "Upgrade fastapi-code-generator to version 0.8.1 or later. Until upgraded, do not generate applications from OpenAPI specifications whose operation summaries are not trusted.", "vendor": "koxudaxi", "product": "fastapi-code-generator", "affected": [ { "affected_notes": [], "affected_ranges": [ "< 0.8.1" ], "ecosystem": "pip", "fixed_versions": [ "0.8.1" ], "package_name": "fastapi-code-generator", "purl": "pkg:pypi/fastapi-code-generator" } ], "cwes": [ 94 ], "cvss_score": 9.3, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": true, "check_confidence_basis": "assessed", "exploit": false, "pipeline_minutes": 21.266547733333333, "t0_at": "2026-11-03T19:13:47.034000+00:00", "signals": { "check": { "at": "2026-11-03T20:19:58.373970+00:00", "days": 0.04596458298611111, "is_lower_bound": false, "measured_at": "2026-11-03T19:13:47.034000+00:00", "url": null }, "trigger_signal": { "at": "2026-11-03T19:13:47.034000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-11-03T19:13:47.034000+00:00", "url": "https://www.cve.org/CVERecord?id=CVE-2026-63470" } } }
published 2026-11-03 19:58Z
last change 2026-11-04 21:53Z
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