CVE-2026-108551

CRITICAL

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 v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 10/10/2026Modified: 10/10/2026

Related Intelligence (1)

CRITICALVulnerability

NVD CRITICAL: CVE-2026-108551 — openapi-typescript-codegen through 0.31.0 contains a code injection vulnerabilit...

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 importe

CVE-2026-108551
NIST NVD

References (5)

https://github.com/ferdikoomen/openapi-typescript-codegenhttps://github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/core/OpenAPI.hbs#L20-L23https://github.com/ferdikoomen/openapi-typescript-codegen/blob/v0.31.0/src/templates/exportService.hbs#L89-L110https://github.com/ferdikoomen/openapi-typescript-codegen/issues/2809https://www.vulncheck.com/advisories/openapi-typescript-codegen-through-0.31.0-code-injection-via-handlebars-templates