CVE-2026-54662Public exploitNetwork attack vector

Code execution via unescaped server URL

Published Jul 29, 2026 · Updated Jul 29, 2026

Code injection in acacode swagger-typescript-api before 13.12.2 allows attackers to execute code via a malicious OpenAPI specification. createApiConfig copies servers[0].url into apiConfig.baseUrl, which the fetch HTTP-client template inserts raw into a TypeScript class-field string. The attacker must control a processed specification and a consumer must import the generated client; the injected static initializer then runs with the importing process's privileges.

CVSS severity8.3
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in acacode swagger-typescript-api before 13.12.2 allows attackers to execute code via a malicious OpenAPI specification. createApiConfig copies servers[0].url into apiConfig.baseUrl, which the fetch HTTP-client template inserts raw into a TypeScript class-field string. The attacker must control a processed specification and a consumer must import the generated client; the injected static initializer then runs with the importing process's privileges.

The record

CVE
CVE-2026-54662
Published
Jul 29, 2026
Updated
Jul 29, 2026
Vendor
acacode
Product
swagger-typescript-api
Classifications
CWE-74, CWE-94, CWE-1336, T1059.007, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 13.12.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

acacode · swagger-typescript-apiversion=< 13.12.2

Published CVSS scores

8.3GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
T1059.007JavaScript/JScript
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo