CVE-2026-54666PoC

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-routes/schema-routes.ts passes OpenAPI path keys through parseRouteName to templates/default/procedure-call.ejs and templates/modular/procedure-call.ejs without escaping JavaScript template literal interpolation, allowing an attacker-controlled path containing ${...} to execute when the generated method is called. This issue is fixed in version 13.12.2.

3.5/ 10 priority

Sources & remediation

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
00111Mentions · 2026-06-18: 1PoC Mentioned / Linked · 2026-06-18: 1Exploit Tool / Code · 2026-06-18: 1Technical Details · 2026-06-18: 106-18
Signal classification1 categories
PoC
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Hamza@TheGr1ffyn
    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 author reveals six CVEs in a major npm package, details four RCE vulnerabilities, and links to a writeup providing sinks and payloads.

    0001093
    132 followersView on X

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