CVE-2026-22785
orval MCP client is vulnerable to a code injection attack.
Description
orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI specification without proper validation or escaping. This allows an attacker to "break out" of the string literal and inject arbitrary code. This vulnerability is fixed in 7.18.0.
INFO
Published Date :
Jan. 12, 2026, 7:16 p.m.
Last Modified :
Feb. 26, 2026, 8 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
Solution
- Update orval to version 7.18.0 or later.
- Validate OpenAPI specifications for summary field.
- Sanitize user-supplied input during generation.
Public PoC/Exploit Available at Github
CVE-2026-22785 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-22785.
| URL | Resource |
|---|---|
| https://github.com/orval-labs/orval/commit/80b5fe73b94f120a3a5561952d6d4b0f8d7e928d | Patch |
| https://github.com/orval-labs/orval/security/advisories/GHSA-mwr6-3gp8-9jmj | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-22785 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-22785
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Mirror of https://github.com/nomi-sec/PoC-in-GitHub
None
Python
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-22785 vulnerability anywhere in the article.
-
Daily CyberSecurity
Supply Chain Alert: Critical Code Injection Flaw (CVSS 9.3) in Orval
Developers relying on orval to generate type-safe clients from OpenAPI specifications are being urged to update immediately following the discovery of a critical code injection vulnerability. The flaw ... Read more
The following table lists the changes that have been made to the
CVE-2026-22785 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:orval:orval:*:*:*:*:*:*:*:* versions up to (excluding) 7.18.0 Added Reference Type GitHub, Inc.: https://github.com/orval-labs/orval/commit/80b5fe73b94f120a3a5561952d6d4b0f8d7e928d Types: Patch Added Reference Type GitHub, Inc.: https://github.com/orval-labs/orval/security/advisories/GHSA-mwr6-3gp8-9jmj Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Jan. 12, 2026
Action Type Old Value New Value Added Description orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Prior to 7.18.0, the MCP server generation logic relies on string manipulation that incorporates the summary field from the OpenAPI specification without proper validation or escaping. This allows an attacker to "break out" of the string literal and inject arbitrary code. This vulnerability is fixed in 7.18.0. Added CVSS V4.0 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 Added CWE CWE-77 Added Reference https://github.com/orval-labs/orval/commit/80b5fe73b94f120a3a5561952d6d4b0f8d7e928d Added Reference https://github.com/orval-labs/orval/security/advisories/GHSA-mwr6-3gp8-9jmj