CVE-2026-108551
critical · 9.3openapi-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.
9.3
CVSS
0.4%
EPSS (exploit prob.)
36th
EPSS percentile
2026-10-10
Published
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/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
Weaknesses
CWE-94
References
- 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
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-108551