CVE-2026-76227

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-19. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

Renovate versions from 42.68.1 before 42.96.3 (and from 42.68.1 before 43.4.4), including corresponding Docker images (renovate/renovate, mend/renovate-ce, renovate-ee-server, renovate-ee-worker >=13.3.0 <13.6.0), fail to restrict environment variables to an allowlist when spawning child processes. As a result, child processes (e.g. npm install, postUpgradeTasks, postUpdateOptions) gain full access to all environment variables of the Renovate process, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 19, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Aug 19, 2026
Patch available. Sources: github.
generic

Renovate 42.68.1 before 42.96.3 Environment Variable Exposure | Advisories | VulnCheck

https://www.vulncheck.com/advisories/renovate-before-environment-variable-exposure
github Patch Available

Child processes spawned by Renovate incorrectly have full access to environment variables · Advisory · renovatebot/renovate · GitHub

https://github.com/renovatebot/renovate/security/advisories/GHSA-8wc6-vgrq-x6cf

Vendor Advisories for CVE-2026-76227(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
renovate—43.4.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 84× 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. 2026-09-19 01:39 UTCEG score recompute
  2. 2026-09-19 01:39 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 01:32 UTCEG score recompute
  5. 2026-09-18 01:32 UTCGHSA enrichment
  6. 2026-09-17 01:28 UTCEG score recompute
  7. 2026-09-17 01:28 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 01:23 UTCEG score recompute
  11. 2026-09-16 01:23 UTCGHSA enrichment
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-15 01:17 UTCGHSA enrichment
  14. 2026-09-14 01:13 UTCEG score recompute
  15. 2026-09-14 01:13 UTCGHSA enrichment
  16. 2026-09-13 01:09 UTCGHSA enrichment
  17. 2026-09-12 01:04 UTCEG score recompute
  18. 2026-09-12 01:04 UTCGHSA enrichment
  19. 2026-09-11 14:53 UTCEPSS rescore
  20. 2026-09-11 01:00 UTCEG score recompute
  21. 2026-09-11 01:00 UTCGHSA enrichment
  22. 2026-09-10 09:35 UTCEPSS rescore
  23. 2026-09-10 00:55 UTCEG score recompute
  24. 2026-09-10 00:55 UTCGHSA enrichment
  25. 2026-09-08 22:01 UTCEPSS rescore
Show 62 more
  1. 2026-09-08 20:53 UTCGHSA enrichment
  2. 2026-09-08 05:43 UTCEG score recompute
  3. 2026-09-08 05:43 UTCGHSA enrichment
  4. 2026-09-07 05:30 UTCEG score recompute
  5. 2026-09-07 05:30 UTCGHSA enrichment
  6. 2026-09-06 13:48 UTCEPSS rescore
  7. 2026-09-06 05:24 UTCEG score recompute
  8. 2026-09-06 05:24 UTCGHSA enrichment
  9. 2026-09-05 05:19 UTCEG score recompute
  10. 2026-09-05 05:19 UTCGHSA enrichment
  11. 2026-09-04 05:10 UTCEG score recompute
  12. 2026-09-04 05:10 UTCGHSA enrichment
  13. 2026-09-04 05:07 UTCEPSS rescore
  14. 2026-09-03 04:24 UTCEG score recompute
  15. 2026-09-03 04:24 UTCGHSA enrichment
  16. 2026-09-02 14:12 UTCEPSS rescore
  17. 2026-09-02 04:18 UTCEG score recompute
  18. 2026-09-02 04:18 UTCGHSA enrichment
  19. 2026-09-01 13:54 UTCEPSS rescore
  20. 2026-09-01 04:40 UTCEPSS rescore
  21. 2026-09-01 04:40 UTCEPSS rescore
  22. 2026-09-01 04:08 UTCGHSA enrichment
  23. 2026-08-31 03:50 UTCEG score recompute
  24. 2026-08-31 03:50 UTCGHSA enrichment
  25. 2026-08-30 19:18 UTCEPSS rescore
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 03:46 UTCEG score recompute
  28. 2026-08-30 03:46 UTCGHSA enrichment
  29. 2026-08-30 01:22 UTCEPSS rescore
  30. 2026-08-29 03:41 UTCEG score recompute
  31. 2026-08-29 03:41 UTCGHSA enrichment
  32. 2026-08-28 21:42 UTCEPSS rescore
  33. 2026-08-28 03:35 UTCEG score recompute
  34. 2026-08-28 03:35 UTCGHSA enrichment
  35. 2026-08-27 14:25 UTCEPSS rescore
  36. 2026-08-27 03:30 UTCEG score recompute
  37. 2026-08-27 03:30 UTCGHSA enrichment
  38. 2026-08-26 14:47 UTCEPSS rescore
  39. 2026-08-26 03:26 UTCEG score recompute
  40. 2026-08-26 03:26 UTCGHSA enrichment
  41. 2026-08-25 13:49 UTCEPSS rescore
  42. 2026-08-25 03:22 UTCEG score recompute
  43. 2026-08-25 03:22 UTCGHSA enrichment
  44. 2026-08-25 02:20 UTCEG score recompute
  45. 2026-08-25 02:20 UTCGHSA enrichment
  46. 2026-08-24 14:47 UTCEG score recompute
  47. 2026-08-24 14:46 UTCGHSA enrichment
  48. 2026-08-24 14:18 UTCEPSS rescore
  49. 2026-08-23 14:42 UTCEG score recompute
  50. 2026-08-23 14:42 UTCGHSA enrichment
  51. 2026-08-23 00:19 UTCEPSS rescore
  52. 2026-08-22 14:38 UTCEG score recompute
  53. 2026-08-22 14:38 UTCGHSA enrichment
  54. 2026-08-21 23:49 UTCEPSS rescore
  55. 2026-08-21 14:34 UTCEG score recompute
  56. 2026-08-21 14:34 UTCGHSA enrichment
  57. 2026-08-20 22:56 UTCEPSS rescore
  58. 2026-08-20 14:30 UTCEG score recompute
  59. 2026-08-20 14:30 UTCGHSA enrichment
  60. 2026-08-19 14:26 UTCEG score recompute
  61. 2026-08-19 14:12 UTCEG score recompute
  62. 2026-08-19 14:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-76227?
CVE-2026-76227 is a medium vulnerability published on August 19, 2026. Renovate versions from 42.68.1 before 42.96.3 (and from 42.68.1 before 43.4.4), including corresponding Docker images (renovate/renovate, mend/renovate-ce, renovate-ee-server, renovate-ee-worker >=13.3.0 <13.6.0), fail to restrict environment variables to an allowlist when spawning child processes.…
When was CVE-2026-76227 disclosed?
CVE-2026-76227 was first published in the National Vulnerability Database on August 19, 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-2026-76227 actively exploited?
CVE-2026-76227 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 98.2% of all scored CVEs.
What is the CVSS score of CVE-2026-76227?
CVE-2026-76227 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-76227?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76227, 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-2026-76227

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