CVE-2026-54661

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 81% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

swagger-typescript-api generates API clients for Fetch or Axios from an OpenAPI Specification. Prior to 13.12.2, templates/base/http-clients/axios-http-client.ejs interpolates servers[0].url from src/code-gen-process.ts into the HttpClient constructor without escaping, allowing an attacker-controlled OpenAPI spec to inject code that executes when new HttpClient() or new Api() is constructed. This issue is fixed in version 13.12.2.

CVSS v3
8.3
EG Score
8.3(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity83% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

Advisory Details (4)

Auto-updated Jul 29, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

v13.12.2

Patch available: acacode/swagger-typescript-api v13.12.2

https://github.com/acacode/swagger-typescript-api/releases/tag/v13.12.2
github_commit Patch Available

commit 306d59acb8ff (acacode/swagger-typescript-api)

Patch available: acacode/swagger-typescript-api v13.12.2 (contains commit 306d59acb8ff)

https://github.com/acacode/swagger-typescript-api/commit/306d59acb8ffbb00f953f807b97234b21f51d9de
github_pr Patch Available

Security/fixing vulnerabilities

Patch available: acacode/swagger-typescript-api v13.12.2 (PR #1779 merged 2026-06-08)

https://github.com/acacode/swagger-typescript-api/pull/1779
github Patch Available🟡 PoC Available

Code injection via unescaped `servers[0].url` in axios http-client template; per-instance RCE on `new HttpClient()` when run against an attacker-controlled OpenAPI spec · Advisory · acacode/swagger-typescript-api · GitHub

https://github.com/acacode/swagger-typescript-api/security/advisories/GHSA-38c3-wv3c-v3xj

Vendor Advisories for CVE-2026-54661(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
swagger-typescript-api—13.12.2—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-15 07:57 UTCEG score recompute
  2. 2026-09-15 03:11 UTCEPSS rescore
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  1. 2026-08-30 10:14 UTCEG score recompute
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  4. 2026-08-28 21:41 UTCEPSS rescore
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  8. 2026-08-26 14:46 UTCEPSS rescore
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  10. 2026-08-25 13:49 UTCEPSS rescore
  11. 2026-08-24 15:51 UTCEG score recompute
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  22. 2026-08-17 21:06 UTCEG score recompute
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  27. 2026-08-16 02:14 UTCEPSS rescore
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  30. 2026-08-14 06:30 UTCEG score recompute
  31. 2026-08-13 22:00 UTCEPSS rescore
  32. 2026-08-12 22:03 UTCEG score recompute
  33. 2026-08-12 13:51 UTCEPSS rescore
  34. 2026-08-12 00:24 UTCEG score recompute
  35. 2026-08-11 02:46 UTCEG score recompute
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  37. 2026-08-09 18:03 UTCEG score recompute
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  39. 2026-08-08 20:25 UTCEG score recompute
  40. 2026-08-08 16:37 UTCEPSS rescore
  41. 2026-08-07 22:46 UTCEG score recompute
  42. 2026-08-06 14:18 UTCEG score recompute
  43. 2026-08-06 13:47 UTCEPSS rescore
  44. 2026-08-06 03:28 UTCEG score recompute
  45. 2026-08-05 19:17 UTCEPSS rescore
  46. 2026-08-04 19:01 UTCEG score recompute
  47. 2026-08-04 15:10 UTCEPSS rescore
  48. 2026-08-04 10:39 UTCEPSS rescore
  49. 2026-08-02 12:42 UTCEG score recompute
  50. 2026-08-02 02:27 UTCEPSS rescore
  51. 2026-08-01 15:04 UTCEG score recompute
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  53. 2026-07-30 19:43 UTCEG score recompute
  54. 2026-07-30 16:28 UTCEPSS rescore
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  56. 2026-07-29 15:21 UTCEG score recompute
  57. 2026-07-29 14:48 UTCEG score recompute
  58. 2026-07-29 14:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54661?
CVE-2026-54661 is a high vulnerability published on July 29, 2026. swagger-typescript-api generates API clients for Fetch or Axios from an OpenAPI Specification. Prior to 13.12.2, templates/base/http-clients/axios-http-client.ejs interpolates servers[0].url from src/code-gen-process.ts into the HttpClient constructor without escaping, allowing an…
When was CVE-2026-54661 disclosed?
CVE-2026-54661 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54661 actively exploited?
CVE-2026-54661 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.8% of all scored CVEs.
What is the CVSS score of CVE-2026-54661?
CVE-2026-54661 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-54661?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54661, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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