CVE-2026-54663

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 92% 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
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: 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 OpenAPI specifications. Prior to 13.12.2, src/resolved-swagger-schema.ts warmUpRemoteSchemasCache resolves external $ref URLs and fetchRemoteSchemaDocument uses isHttpUrl to fetch any http or https target without private IP, redirect, DNS rebinding, or same-origin validation, allowing an attacker-controlled OpenAPI spec to make the generator issue requests to internal or link-local services. This issue is fixed in version 13.12.2.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
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_release, github, github_pr, github_commit.
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

Server-Side Request Forgery via spec `$ref`; generator makes attacker-directed HTTP requests during code generation when run against an attacker-controlled OpenAPI spec · Advisory · acacode/swagger-typescript-api · GitHub

https://github.com/acacode/swagger-typescript-api/security/advisories/GHSA-x36r-4347-pm5x

Vendor Advisories for CVE-2026-54663(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 / 44× 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
  3. 2026-09-14 02:24 UTCEG score recompute
  4. 2026-09-13 16:47 UTCEPSS rescore
  5. 2026-09-13 03:48 UTCEG score recompute
  6. 2026-09-12 05:09 UTCEG score recompute
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 06:32 UTCEG score recompute
  9. 2026-09-10 09:35 UTCEPSS rescore
  10. 2026-09-09 07:48 UTCEG score recompute
  11. 2026-09-08 22:01 UTCEPSS rescore
  12. 2026-09-07 20:50 UTCEG score recompute
  13. 2026-09-07 16:01 UTCEPSS rescore
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-06 10:19 UTCEG score recompute
  16. 2026-09-05 11:30 UTCEG score recompute
  17. 2026-09-04 11:55 UTCEG score recompute
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 14:12 UTCEPSS rescore
  20. 2026-09-01 22:47 UTCEG score recompute
  21. 2026-09-01 13:54 UTCEPSS rescore
  22. 2026-09-01 04:40 UTCEPSS rescore
  23. 2026-08-30 21:56 UTCEG score recompute
  24. 2026-08-30 19:17 UTCEPSS rescore
  25. 2026-08-30 01:22 UTCEPSS rescore
Show 56 more
  1. 2026-08-29 23:19 UTCEG score recompute
  2. 2026-08-28 21:41 UTCEPSS rescore
  3. 2026-08-27 14:25 UTCEPSS rescore
  4. 2026-08-27 09:27 UTCEG score recompute
  5. 2026-08-26 14:46 UTCEPSS rescore
  6. 2026-08-26 10:30 UTCEG score recompute
  7. 2026-08-25 13:49 UTCEPSS rescore
  8. 2026-08-25 11:25 UTCEG score recompute
  9. 2026-08-24 12:43 UTCEG score recompute
  10. 2026-08-23 14:07 UTCEG score recompute
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-22 15:29 UTCEG score recompute
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-19 19:39 UTCEG score recompute
  15. 2026-08-19 17:04 UTCEPSS rescore
  16. 2026-08-18 18:36 UTCEG score recompute
  17. 2026-08-18 13:48 UTCEPSS rescore
  18. 2026-08-17 17:11 UTCEG score recompute
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-16 18:35 UTCEG score recompute
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 19:59 UTCEG score recompute
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-13 22:47 UTCEG score recompute
  26. 2026-08-13 22:00 UTCEPSS rescore
  27. 2026-08-13 00:10 UTCEG score recompute
  28. 2026-08-12 13:51 UTCEPSS rescore
  29. 2026-08-12 01:34 UTCEG score recompute
  30. 2026-08-11 02:58 UTCEG score recompute
  31. 2026-08-11 00:00 UTCEPSS rescore
  32. 2026-08-10 04:22 UTCEG score recompute
  33. 2026-08-09 13:46 UTCEPSS rescore
  34. 2026-08-09 05:46 UTCEG score recompute
  35. 2026-08-08 16:37 UTCEPSS rescore
  36. 2026-08-08 07:10 UTCEG score recompute
  37. 2026-08-07 08:34 UTCEG score recompute
  38. 2026-08-06 13:47 UTCEPSS rescore
  39. 2026-08-06 09:58 UTCEG score recompute
  40. 2026-08-05 19:17 UTCEPSS rescore
  41. 2026-08-05 11:22 UTCEG score recompute
  42. 2026-08-04 15:10 UTCEPSS rescore
  43. 2026-08-04 12:46 UTCEG score recompute
  44. 2026-08-04 10:39 UTCEPSS rescore
  45. 2026-08-03 14:10 UTCEG score recompute
  46. 2026-08-03 10:36 UTCEPSS rescore
  47. 2026-08-02 15:33 UTCEG score recompute
  48. 2026-08-02 02:27 UTCEPSS rescore
  49. 2026-08-01 16:57 UTCEG score recompute
  50. 2026-08-01 04:16 UTCEPSS rescore
  51. 2026-07-30 19:43 UTCEG score recompute
  52. 2026-07-30 16:28 UTCEPSS rescore
  53. 2026-07-30 15:03 UTCEG score recompute
  54. 2026-07-29 15:21 UTCEG score recompute
  55. 2026-07-29 14:48 UTCEG score recompute
  56. 2026-07-29 14:47 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-54663?
CVE-2026-54663 is a medium vulnerability published on July 29, 2026. swagger-typescript-api generates API clients for Fetch or Axios from OpenAPI specifications. Prior to 13.12.2, src/resolved-swagger-schema.ts warmUpRemoteSchemasCache resolves external $ref URLs and fetchRemoteSchemaDocument uses isHttpUrl to fetch any http or https target without private IP,…
When was CVE-2026-54663 disclosed?
CVE-2026-54663 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-2026-54663 actively exploited?
CVE-2026-54663 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 92.2% of all scored CVEs.
What is the CVSS score of CVE-2026-54663?
CVE-2026-54663 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-54663?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54663, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-54663

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