CVE-2026-42129

HIGHPre-NVD 7.77.7—
EchelonGraph scoreHIGH confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-06-22. a secondary CVSS source baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.7Exploit: NoneExposed: 0

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

The Loki datasource plugin's callResource handler contains a path traversal vulnerability. An authenticated Viewer-role user can escape the plugin's resource sandbox and access administrative Loki endpoints (e.g. /config, /services, /ready) to extract sensitive backend configuration and internal service information.

CVSS v3
7.7
EG Score
7.7(high)
EPSS
31.4%
KEV
Not listed

Published

June 22, 2026

Last Modified

June 30, 2026

References (1)

Vendor Advisories for CVE-2026-42129(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 36× in last 7d / 78× 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. 2026-07-06 22:51 UTCEG score recompute
  2. 2026-07-06 22:51 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 11:26 UTCEG score recompute
  6. 2026-07-06 11:26 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 23:18 UTCEG score recompute
  10. 2026-07-05 23:18 UTCGHSA enrichment
  11. 2026-07-05 11:53 UTCEG score recompute
  12. 2026-07-05 11:53 UTCGHSA enrichment
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-05 00:29 UTCEG score recompute
  15. 2026-07-05 00:29 UTCGHSA enrichment
  16. 2026-07-04 13:05 UTCEG score recompute
  17. 2026-07-04 13:05 UTCGHSA enrichment
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-04 01:41 UTCEG score recompute
  20. 2026-07-04 01:41 UTCGHSA enrichment
  21. 2026-07-03 14:12 UTCEG score recompute
  22. 2026-07-03 14:12 UTCGHSA enrichment
  23. 2026-07-03 02:48 UTCEG score recompute
  24. 2026-07-03 02:48 UTCGHSA enrichment
  25. 2026-07-02 15:24 UTCEG score recompute
Show 53 more
  1. 2026-07-02 15:24 UTCGHSA enrichment
  2. 2026-07-02 04:00 UTCEG score recompute
  3. 2026-07-02 04:00 UTCGHSA enrichment
  4. 2026-07-01 16:35 UTCEG score recompute
  5. 2026-07-01 16:35 UTCGHSA enrichment
  6. 2026-07-01 15:06 UTCEPSS rescore
  7. 2026-07-01 05:11 UTCEG score recompute
  8. 2026-07-01 05:11 UTCGHSA enrichment
  9. 2026-06-30 23:22 UTCEPSS rescore
  10. 2026-06-30 17:47 UTCEG score recompute
  11. 2026-06-30 17:47 UTCGHSA enrichment
  12. 2026-06-30 06:24 UTCEG score recompute
  13. 2026-06-30 06:23 UTCGHSA enrichment
  14. 2026-06-29 18:59 UTCEG score recompute
  15. 2026-06-29 18:59 UTCGHSA enrichment
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-29 07:35 UTCEG score recompute
  18. 2026-06-29 07:35 UTCGHSA enrichment
  19. 2026-06-28 20:10 UTCEG score recompute
  20. 2026-06-28 20:10 UTCGHSA enrichment
  21. 2026-06-28 14:07 UTCEPSS rescore
  22. 2026-06-28 08:46 UTCEG score recompute
  23. 2026-06-28 08:46 UTCGHSA enrichment
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-27 21:23 UTCEG score recompute
  26. 2026-06-27 21:23 UTCGHSA enrichment
  27. 2026-06-27 09:59 UTCEG score recompute
  28. 2026-06-27 09:59 UTCGHSA enrichment
  29. 2026-06-27 03:08 UTCEPSS rescore
  30. 2026-06-26 22:35 UTCEG score recompute
  31. 2026-06-26 22:34 UTCGHSA enrichment
  32. 2026-06-26 11:08 UTCEG score recompute
  33. 2026-06-26 11:08 UTCGHSA enrichment
  34. 2026-06-25 23:31 UTCEG score recompute
  35. 2026-06-25 23:31 UTCGHSA enrichment
  36. 2026-06-25 13:49 UTCEPSS rescore
  37. 2026-06-25 13:49 UTCEPSS rescore
  38. 2026-06-25 12:06 UTCEG score recompute
  39. 2026-06-25 12:06 UTCGHSA enrichment
  40. 2026-06-25 00:41 UTCEG score recompute
  41. 2026-06-25 00:41 UTCGHSA enrichment
  42. 2026-06-24 14:05 UTCEPSS rescore
  43. 2026-06-24 13:17 UTCEG score recompute
  44. 2026-06-24 13:17 UTCGHSA enrichment
  45. 2026-06-24 01:52 UTCEG score recompute
  46. 2026-06-24 01:52 UTCGHSA enrichment
  47. 2026-06-23 21:33 UTCEPSS rescore
  48. 2026-06-23 14:28 UTCEG score recompute
  49. 2026-06-23 14:28 UTCGHSA enrichment
  50. 2026-06-23 03:04 UTCEG score recompute
  51. 2026-06-23 03:03 UTCGHSA enrichment
  52. 2026-06-22 15:37 UTCEG score recompute
  53. 2026-06-22 15:37 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-42129?
CVE-2026-42129 is a high vulnerability published on June 22, 2026. The Loki datasource plugin's callResource handler contains a path traversal vulnerability. An authenticated Viewer-role user can escape the plugin's resource sandbox and access administrative Loki endpoints (e.g. /config, /services, /ready) to extract sensitive backend configuration and internal…
When was CVE-2026-42129 disclosed?
CVE-2026-42129 was first published in the National Vulnerability Database on June 22, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42129 actively exploited?
CVE-2026-42129 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42129?
CVE-2026-42129 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-42129?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42129, 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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