CVE-2026-9317

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-04. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

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

Nango before 0.71.6 contains a missing authentication vulnerability in the runner tRPC server that allows unauthenticated attackers to execute arbitrary JavaScript code by invoking the exposed start procedure without credentials. Attackers with network access to the runner port can send requests to the unauthenticated start procedure, bypassing the unenforced RUNNER_SECRET_KEY environment variable, to achieve remote code execution within the runner process.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (4)

Auto-updated Sep 4, 2026
Patch available. Sources: github_commit, github_release, github_pr.
generic

Nango < 0.71.6 Missing Authentication RCE via runner tRPC server | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nango-missing-authentication-rce-via-runner-trpc-server
github_commit Patch Available

commit ed3030a9a0f8 (NangoHQ/nango)

Patch available: NangoHQ/nango v0.71.6 (contains commit ed3030a9a0f8)

https://github.com/NangoHQ/nango/commit/ed3030a9a0f8e4f3810fd10cb3a1905a2f5f87d2
github_pr Patch Available

fix(runner): auth runner start

Patch available: NangoHQ/nango v0.71.6 (PR #7288 merged 2026-09-01)

https://github.com/NangoHQ/nango/pull/7288
github_release Patch Available

v0.71.6

Patch available: NangoHQ/nango v0.71.6

https://github.com/NangoHQ/nango/releases/tag/v0.71.6

Vendor Advisories for CVE-2026-9317(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 73× 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. 2026-09-21 02:29 UTCEG score recompute
  2. 2026-09-21 02:29 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 15:19 UTCGHSA enrichment
  5. 2026-09-20 04:07 UTCGHSA enrichment
  6. 2026-09-19 16:58 UTCEG score recompute
  7. 2026-09-19 16:58 UTCGHSA enrichment
  8. 2026-09-19 05:50 UTCEG score recompute
  9. 2026-09-19 05:50 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 18:41 UTCGHSA enrichment
  12. 2026-09-18 07:32 UTCGHSA enrichment
  13. 2026-09-17 20:22 UTCEG score recompute
  14. 2026-09-17 20:22 UTCGHSA enrichment
  15. 2026-09-17 19:32 UTCEPSS rescore
  16. 2026-09-17 05:33 UTCGHSA enrichment
  17. 2026-09-16 18:23 UTCEG score recompute
  18. 2026-09-16 18:23 UTCGHSA enrichment
  19. 2026-09-16 14:09 UTCEPSS rescore
  20. 2026-09-16 06:38 UTCEG score recompute
  21. 2026-09-16 06:38 UTCGHSA enrichment
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 19:29 UTCGHSA enrichment
  24. 2026-09-15 08:20 UTCEG score recompute
  25. 2026-09-15 08:20 UTCGHSA enrichment
Show 48 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 21:11 UTCGHSA enrichment
  3. 2026-09-14 09:50 UTCGHSA enrichment
  4. 2026-09-13 22:37 UTCEG score recompute
  5. 2026-09-13 22:37 UTCGHSA enrichment
  6. 2026-09-13 16:48 UTCEPSS rescore
  7. 2026-09-13 11:28 UTCGHSA enrichment
  8. 2026-09-13 00:19 UTCEG score recompute
  9. 2026-09-13 00:19 UTCGHSA enrichment
  10. 2026-09-12 15:02 UTCEPSS rescore
  11. 2026-09-12 13:10 UTCGHSA enrichment
  12. 2026-09-12 02:01 UTCEG score recompute
  13. 2026-09-12 02:01 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 14:52 UTCEG score recompute
  16. 2026-09-11 14:52 UTCGHSA enrichment
  17. 2026-09-11 09:38 UTCEPSS rescore
  18. 2026-09-11 03:43 UTCGHSA enrichment
  19. 2026-09-10 16:34 UTCEG score recompute
  20. 2026-09-10 16:34 UTCGHSA enrichment
  21. 2026-09-10 09:35 UTCEPSS rescore
  22. 2026-09-10 05:25 UTCGHSA enrichment
  23. 2026-09-09 18:15 UTCGHSA enrichment
  24. 2026-09-09 07:06 UTCEG score recompute
  25. 2026-09-09 07:05 UTCGHSA enrichment
  26. 2026-09-08 22:01 UTCEPSS rescore
  27. 2026-09-08 19:56 UTCEG score recompute
  28. 2026-09-08 19:56 UTCGHSA enrichment
  29. 2026-09-08 18:15 UTCEG score recompute
  30. 2026-09-08 18:15 UTCGHSA enrichment
  31. 2026-09-08 05:39 UTCGHSA enrichment
  32. 2026-09-07 18:27 UTCEG score recompute
  33. 2026-09-07 18:27 UTCGHSA enrichment
  34. 2026-09-07 07:18 UTCGHSA enrichment
  35. 2026-09-06 20:06 UTCEG score recompute
  36. 2026-09-06 20:06 UTCGHSA enrichment
  37. 2026-09-06 13:48 UTCEPSS rescore
  38. 2026-09-06 08:54 UTCGHSA enrichment
  39. 2026-09-05 21:46 UTCEG score recompute
  40. 2026-09-05 21:45 UTCGHSA enrichment
  41. 2026-09-05 15:31 UTCEPSS rescore
  42. 2026-09-05 10:37 UTCEG score recompute
  43. 2026-09-05 10:36 UTCGHSA enrichment
  44. 2026-09-05 05:40 UTCEG score recompute
  45. 2026-09-05 05:40 UTCGHSA enrichment
  46. 2026-09-04 18:31 UTCEG score recompute
  47. 2026-09-04 17:59 UTCEG score recompute
  48. 2026-09-04 17:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9317?
CVE-2026-9317 is a high vulnerability published on September 4, 2026. Nango before 0.71.6 contains a missing authentication vulnerability in the runner tRPC server that allows unauthenticated attackers to execute arbitrary JavaScript code by invoking the exposed start procedure without credentials. Attackers with network access to the runner port can send requests to…
When was CVE-2026-9317 disclosed?
CVE-2026-9317 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9317 actively exploited?
CVE-2026-9317 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.2% of all scored CVEs.
What is the CVSS score of CVE-2026-9317?
CVE-2026-9317 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-9317?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9317, 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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