ferdikoomen openapi-typescript-codegen up to 0.31.0 String Interpolation code injection

Summaryinfo

A vulnerability classified as critical has been found in ferdikoomen openapi-typescript-codegen up to 0.31.0. Affected by this issue is some unknown functionality of the component String Interpolation. The manipulation of the argument path keys/parameter names/servers[0].url/info.version leads to code injection. This vulnerability is traded as CVE-2026-108551. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in ferdikoomen openapi-typescript-codegen up to 0.31.0 and classified as critical. This issue affects some unknown processing of the component String Interpolation. The manipulation of the argument path keys/parameter names/servers[0].url/info.version with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-108551 since 10/10/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/10/2026). The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• ferdikoomen

Name

• openapi-typescript-codegen

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31.0

Website

• Product: https://github.com/ferdikoomen/openapi-typescript-codegen/

CPE 2.3info

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CPE 2.2info

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