CVE-2026-71866Patch

LOWCVSS 9.3 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. From version 8.19.0 until 8.21.0, a double quote in a schema property name is emitted into the generated zod.object({...}) schema without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated zod schema module is imported, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/zod/src/index.ts and zod object-key generation. This issue is fixed in version 8.21.0.

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0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-89CWE-95

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Full discourse1 post

Upwind Security MDR@UpwindMDR46d
Patch
🚨Critical - Orval Generated Zod Schema Code Injection RCE (CVE-2026-71866) Orval emits attacker-controlled schema property names containing a double quote into generated zod.object({...}) without escaping, allowing JS injection in the generated Zod schema module. The payload executes on import during build/test/runtime, leading to RCE in dev/CI/app environments. 👉Affected: orval 8.19.0-8.20.x | Upgrade to 8.21.0
Post summary
A critical RCE vulnerability (CVE-2026-71866) in orval allows unescaped schema property names to inject JavaScript, but a patch is available through upgrading to version 8.21.0.
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