CVE-2026-108551

openapi-typescript-codegen through 0.31.0 contains a code injection vulnerability that allows attackers controlling an OpenAPI document to inject JavaScript by supplying unescaped values interpolated into single-quoted string literals. Attackers can embed a single quote in path keys, parameter names, servers[0].url, or info.version to execute arbitrary JavaScript when generated clients are imported or service methods called.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/ferdikoomen/openapi-typescript-codegen
https://github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/core/OpenAPI.hbs#L20-L23
https://github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/exportService.hbs#L89-L110
https://github.com/ferdikoomen/openapi-typescript-codegen/issues/2809
https://www.vulncheck.com/advisories/openapi-typescript-codegen-through-0.31.0-code-injection-via-handlebars-templates

Configurations

No configuration.

History

10 Oct 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-10 15:16

Updated : 2026-10-16 19:21

NVD link : CVE-2026-108551

Mitre link : CVE-2026-108551

CVE.ORG link : CVE-2026-108551

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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