CVE-2026-51190

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

The "s init" command in Serverless-Devs @serverless-devs/s <= 3.1.11 passes unsanitized user input to child_process.spawn() with shell: true. A URL ending in ".git" bypasses the only input check, allowing OS command injection when a user runs "s init" with an attacker-controlled argument.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
62%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 6, 2026

Advisory Details (1)

Auto-updated Aug 21, 2026
🔬 Proof of concept available. Patch available.
generic Patch Available🟡 PoC Available

Vulnerability Report for Command Injection in `s init` via `shell: true` in spawn · GitHub

https://gist.github.com/j311yl0v3u/5600afea3bea1337805c2e335bd4ae8e

Vendor Advisories for CVE-2026-51190(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 54× in last 7d / 119× 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.

Showing the most recent 100 of 119 total refreshes for this CVE.

  1. 2026-08-21 04:26 UTCGHSA enrichment
  2. 2026-08-21 00:21 UTCEG score recompute
  3. 2026-08-21 00:21 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 20:17 UTCGHSA enrichment
  6. 2026-08-20 16:12 UTCGHSA enrichment
  7. 2026-08-20 12:08 UTCGHSA enrichment
  8. 2026-08-20 07:58 UTCGHSA enrichment
  9. 2026-08-20 03:54 UTCGHSA enrichment
  10. 2026-08-19 23:50 UTCGHSA enrichment
  11. 2026-08-19 19:45 UTCEG score recompute
  12. 2026-08-19 19:45 UTCGHSA enrichment
  13. 2026-08-19 17:04 UTCEPSS rescore
  14. 2026-08-19 15:40 UTCGHSA enrichment
  15. 2026-08-19 11:36 UTCGHSA enrichment
  16. 2026-08-19 07:30 UTCGHSA enrichment
  17. 2026-08-19 03:23 UTCGHSA enrichment
  18. 2026-08-18 22:25 UTCGHSA enrichment
  19. 2026-08-18 18:21 UTCEG score recompute
  20. 2026-08-18 18:21 UTCGHSA enrichment
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-18 12:00 UTCGHSA enrichment
  23. 2026-08-18 07:53 UTCGHSA enrichment
  24. 2026-08-18 03:48 UTCGHSA enrichment
  25. 2026-08-17 23:44 UTCGHSA enrichment
Show 75 more
  1. 2026-08-17 19:37 UTCGHSA enrichment
  2. 2026-08-17 14:57 UTCEG score recompute
  3. 2026-08-17 14:57 UTCGHSA enrichment
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-17 10:52 UTCGHSA enrichment
  6. 2026-08-17 06:48 UTCGHSA enrichment
  7. 2026-08-17 02:44 UTCGHSA enrichment
  8. 2026-08-16 22:40 UTCGHSA enrichment
  9. 2026-08-16 18:36 UTCEG score recompute
  10. 2026-08-16 18:36 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 14:31 UTCGHSA enrichment
  13. 2026-08-16 10:26 UTCGHSA enrichment
  14. 2026-08-16 06:22 UTCGHSA enrichment
  15. 2026-08-16 02:18 UTCEG score recompute
  16. 2026-08-16 02:18 UTCGHSA enrichment
  17. 2026-08-16 02:14 UTCEPSS rescore
  18. 2026-08-15 22:14 UTCGHSA enrichment
  19. 2026-08-15 18:10 UTCGHSA enrichment
  20. 2026-08-15 14:06 UTCGHSA enrichment
  21. 2026-08-15 10:02 UTCGHSA enrichment
  22. 2026-08-15 05:58 UTCGHSA enrichment
  23. 2026-08-15 01:53 UTCEG score recompute
  24. 2026-08-15 01:53 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
  26. 2026-08-14 21:49 UTCGHSA enrichment
  27. 2026-08-14 17:45 UTCGHSA enrichment
  28. 2026-08-14 13:33 UTCGHSA enrichment
  29. 2026-08-14 09:29 UTCGHSA enrichment
  30. 2026-08-14 05:25 UTCGHSA enrichment
  31. 2026-08-14 01:20 UTCEG score recompute
  32. 2026-08-14 01:20 UTCGHSA enrichment
  33. 2026-08-13 22:00 UTCEPSS rescore
  34. 2026-08-13 21:15 UTCGHSA enrichment
  35. 2026-08-13 17:11 UTCGHSA enrichment
  36. 2026-08-13 13:07 UTCGHSA enrichment
  37. 2026-08-13 09:03 UTCGHSA enrichment
  38. 2026-08-13 04:58 UTCGHSA enrichment
  39. 2026-08-13 00:54 UTCGHSA enrichment
  40. 2026-08-12 20:50 UTCGHSA enrichment
  41. 2026-08-12 16:46 UTCEG score recompute
  42. 2026-08-12 16:46 UTCGHSA enrichment
  43. 2026-08-12 13:51 UTCEPSS rescore
  44. 2026-08-12 12:42 UTCGHSA enrichment
  45. 2026-08-12 08:37 UTCGHSA enrichment
  46. 2026-08-12 04:33 UTCGHSA enrichment
  47. 2026-08-12 00:29 UTCGHSA enrichment
  48. 2026-08-11 20:25 UTCGHSA enrichment
  49. 2026-08-11 16:20 UTCEG score recompute
  50. 2026-08-11 16:20 UTCGHSA enrichment
  51. 2026-08-11 12:16 UTCGHSA enrichment
  52. 2026-08-11 08:12 UTCGHSA enrichment
  53. 2026-08-11 04:07 UTCGHSA enrichment
  54. 2026-08-11 00:03 UTCEG score recompute
  55. 2026-08-11 00:03 UTCGHSA enrichment
  56. 2026-08-11 00:00 UTCEPSS rescore
  57. 2026-08-10 19:59 UTCGHSA enrichment
  58. 2026-08-10 15:55 UTCGHSA enrichment
  59. 2026-08-10 11:47 UTCGHSA enrichment
  60. 2026-08-10 07:43 UTCGHSA enrichment
  61. 2026-08-10 03:39 UTCGHSA enrichment
  62. 2026-08-09 23:35 UTCGHSA enrichment
  63. 2026-08-09 19:31 UTCGHSA enrichment
  64. 2026-08-09 15:27 UTCEG score recompute
  65. 2026-08-09 15:27 UTCGHSA enrichment
  66. 2026-08-09 13:46 UTCEPSS rescore
  67. 2026-08-09 11:23 UTCGHSA enrichment
  68. 2026-08-09 07:18 UTCGHSA enrichment
  69. 2026-08-09 03:14 UTCGHSA enrichment
  70. 2026-08-08 23:10 UTCGHSA enrichment
  71. 2026-08-08 19:06 UTCEG score recompute
  72. 2026-08-08 19:06 UTCGHSA enrichment
  73. 2026-08-08 16:37 UTCEPSS rescore
  74. 2026-08-08 15:02 UTCGHSA enrichment
  75. 2026-08-08 10:57 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-51190?
CVE-2026-51190 is a critical vulnerability published on August 3, 2026. The "s init" command in Serverless-Devs @serverless-devs/s <= 3.1.11 passes unsanitized user input to child_process.spawn() with shell: true. A URL ending in ".git" bypasses the only input check, allowing OS command injection when a user runs "s init" with an attacker-controlled argument.
When was CVE-2026-51190 disclosed?
CVE-2026-51190 was first published in the National Vulnerability Database on August 3, 2026, with the most recent update on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51190 actively exploited?
CVE-2026-51190 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 38.5% of all scored CVEs.
What is the CVSS score of CVE-2026-51190?
CVE-2026-51190 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51190?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51190, 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.

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