CVE-2026-54664PoC

LOWCVSS 8.3 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Prioritize remediation for affected systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

swagger-typescript-api generates API clients for Fetch or Axios from an OpenAPI Specification. Prior to 13.12.2, src/schema-parser/base-schema-parsers/enum.ts passes components.schemas.*.enum[i] values to Ts.StringValue in src/configuration.ts without escaping before templates/base/enum-data-contract.ejs renders TypeScript enum declarations, allowing an attacker-controlled OpenAPI spec to inject code that executes when the generated module is imported. This issue is fixed in version 13.12.2.

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3.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-74CWE-94CWE-1336

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Threat summary

Public PoC and exploit tooling are both present
1 mentions across 1 observed day

What's happening

Exploit tool or code specified in 1 signal
PoC mentioned or linked in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

PoC

1100.0%

Referenced assets1 URL

By indicator

https://thegriffyn.me/blog/oss/six-cves-in-swagger-typescript-api

Full discourse1 post

Hamza@TheGr1ffyn136d
PoC
I got six CVEs in a major npm package including 4 RCEs. CVE-2026-54662, CVE-2026-54661, CVE-2026-54666, CVE-2026-54664, CVE-2026-54660, CVE-2026-54663 Full writeup with every sink and payload here: https://thegriffyn.me/blog/oss/six-cves-in-swagger-typescript-api #infosec #cybersecurity #rce
Post summary
The post announces six CVEs discovered in a major npm package, highlights that four involve remote code execution, and points to a detailed writeup with payloads and sinks, effectively sharing a PoC.
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