CVE-2026-96755

Description

orval versions 8.14.0 through 8.28.1 contain a code injection vulnerability in the @orval/effect generator that converts OpenAPI schema defaults into template literals. Attackers can inject arbitrary JavaScript expressions via schema defaults containing ${...} syntax, which are executed at module scope when the generated code is built or imported.

Overview

State: PUBLISHED
Assigner (CNA): VulnCheck
CVSS severity: CRITICAL
CVSS score: 9.3 / 10
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
Effective score: 9.3 / 10 CRITICAL source: CNA overview
CWE(s): CWE-94
Reserved: 2026-09-23
Published: 2026-09-23 16:23 UTC
Last updated: 2026-09-23 16:47 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/96xxx/CVE-2026-96755.json
Linked Threat: CVE-2026-96755 — orval @orval/effect 8.14.0 through 8.28.1 Code Injection

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-23 17:17:24 UTC
NVD last modified: 2026-09-23 18:16:08 UTC
NVD CVSS v3.1: 9.8 / 10 CRITICAL source: disclosure@vulncheck.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 5.9 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-85405
Assigner: VulnCheck
Published: Sep 23, 2026, 4:23:52 PM
Updated: Sep 23, 2026, 4:47:31 PM
EUVD base score (CVSS 4.0): 9.3 / 10
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
EUVD-reported EPSS: 0.0000
Vendors: orval-labs
Products: orval (8.14.0 <8.29.0)
Aliases: GHSA-qr45-pvfw-p22r

ENISA description: orval versions 8.14.0 through 8.28.1 contain a code injection vulnerability in the @orval/effect generator that converts OpenAPI schema defaults into template literals. Attackers can inject arbitrary JavaScript expressions via schema defaults containing ${...} syntax, which are executed at module scope when the generated code is built or imported.

EUVD references (6)

Affected products (1)

Vendor	Product	Versions	Platforms
orval-labs	orval	`8.14.0` (affected), `8.29.0` (unaffected)	—

Vendor references (6)

References embedded in the original CVE record by the assigning CNA.

GitHub Security Advisory (GHSA-q7f2-jg6j-r867) vendor-advisory
https://github.com/orval-labs/orval/pull/3995 patchissue-tracking
https://github.com/orval-labs/orval/commit/d346d94a660e50a2f8d0f7c17fee2c4c69d8dc23 patch
https://github.com/orval-labs/orval/blob/v8.28.1/packages/effect/src/index.ts#L298-L302 technical-description
https://github.com/orval-labs/orval product
VulnCheck Advisory: orval @orval/effect 8.14.0 through 8.28.1 Code Injection third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (7)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/orval-labs/orval disclosure@vulncheck.com
https://github.com/orval-labs/orval/blob/v8.28.1/packages/effect/src/index.ts#L298-L302 disclosure@vulncheck.com
https://github.com/orval-labs/orval/commit/d346d94a660e50a2f8d0f7c17fee2c4c69d8dc23 disclosure@vulncheck.com
https://github.com/orval-labs/orval/pull/3995 disclosure@vulncheck.com
https://github.com/orval-labs/orval/security/advisories/GHSA-q7f2-jg6j-r867 disclosure@vulncheck.com
https://github.com/orval-labs/orval/security/advisories/GHSA-q7f2-jg6j-r867 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.vulncheck.com/advisories/orval-orval-effect-8.14.0-through-8.28.1-code-injection disclosure@vulncheck.com

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-96755 - Vulnerability Details - OpenCVE

web:app.opencve.io

orval versions 8.14.0 through 8.28.1 contain a code injection vulnerability in the @orval/effect generator that converts OpenAPI schema defaults into template literals. Attackers can inject arbitrary JavaScript expressions via schema defaults containing $ {...} syntax, which are executed at module scope when the generated code is built or imported.

2026-09-24 11:07 UTC
CVE-2026-96755: Orval Remote Code Execution - CVETodo

web:cvetodo.com

CVE-2026-96755 is a CVSS 9.8 Remote Code Execution vulnerability in Orval. See exploitation status, patch guidance, and technical details.

2026-09-24 11:07 UTC
CVE-2026-96755: Product identification pending

web:itknowledgebases.com

Export to CSV for reporting, ticketing, or patch prioritization workflows. What Is a CVE Advisory? A CVE (Common Vulnerabilities and Exposures) advisory is a public disclosure of a security vulnerability assigned a unique identifier by MITRE. Advisories include severity scores (CVSS), affected versions, and remediation guidance.

2026-09-24 11:07 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-24 11:07 UTC
CVE-2026-96755: Improper Control of Generation of Code ('Code Injection ...

web:radar.offseq.com

Mitigation Recommendations Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid using untrusted OpenAPI schema defaults that may contain malicious $ {...} expressions in orval versions 8.14.0 through 8.28.1. Monitor vendor channels for updates and apply patches promptly once released.

2026-09-24 11:07 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-24 11:07 UTC
Microsoft is working on a patch for 'YellowKey ... - Computerworld

web:www.computerworld.com

Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...

2026-09-24 11:07 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-24 11:07 UTC
CVE-2026-96755: orval-labs orval: orval versions 8.14.0 ... - Rapid7

web:www.rapid7.com

CVE-2026-96755 : orval-labs orval: orval versions 8.14.0 through 8.28.1 contain a code injection vulnerability in the @orval/effect generator that…. View severity, references, and remediation details from Rapid7.

2026-09-24 11:07 UTC
CVE-2026-96755 | Tenable®

web:www.tenable.com

orval versions 8.14.0 through 8.28.1 contain a code injection vulnerability in the @orval/effect generator that converts OpenAPI schema defaults into template literals. Attackers can inject arbitrary JavaScript expressions via schema defaults containing ${...} syntax, which are executed at module scope when the generated code is built or imported.

2026-09-24 11:07 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-96755.json.

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