CVE-2026-25705

HIGHNVD 8.48.4
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.4 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 71% 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, nvd
8.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.4Exploit: NoneExposed: 0

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

A vulnerability has been identified in Rancher's Extensions where malicious code can be injected in Rancher through a path traversal in the compressedEndpoint field inside a UIPlugin deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or configuration to inject code.

* Write to /var/lib/rancher/ to tamper with cluster state.

* If hostPath volumes are mounted, write to the host node filesystem.

* Use this issue to chain with other attack vectors.

CVSS v3
8.4
EG Score
8.4(medium)
EPSS
28.9%
KEV
Not listed

Published

May 13, 2026

Last Modified

May 13, 2026

Advisory Details (2)

Auto-updated May 13, 2026
Patch available. Sources: github.
github Patch Available

Arbitrary file access via path traversal in Rancher Extensions · Advisory · rancher/rancher · GitHub

https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35

Vendor Advisories for CVE-2026-25705(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)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/rancher/rancher2.11.13

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 55× 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 128 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-25705?
CVE-2026-25705 is a high vulnerability published on May 13, 2026. A vulnerability has been identified in Rancher's Extensions where malicious code can be injected in Rancher through a path traversal in the compressedEndpoint field inside a UIPlugin deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or configuration to inject…
When was CVE-2026-25705 disclosed?
CVE-2026-25705 was first published in the National Vulnerability Database on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25705 actively exploited?
CVE-2026-25705 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-25705?
CVE-2026-25705 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-25705?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25705, 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-2026-25705

Explore →

Is Your Infrastructure Affected by CVE-2026-25705?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.