CVE-2026-108551

openapi-typescript-codegen through 0.31.0 Code Injection via Handlebars Templates

Published Oct 10, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ferdikoomen
Ferdikoomen openapi-typescript-codegen
Vendors & Products Ferdikoomen
Ferdikoomen openapi-typescript-codegen
Type Values Removed Values Added
Description 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.
Title openapi-typescript-codegen through 0.31.0 Code Injection via Handlebars Templates
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 13, 2026, 6:27 PM
Reserved
Oct 10, 2026, 2:24 PM
Status
Deferred
Published
Oct 10, 2026, 3:16 PM
Modified
Oct 16, 2026, 7:21 PM