CVE-2026-65834

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 81% 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, secondary
Elevated
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: Elevated riskExposed: 0

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

Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex were not validated by the configuration admission webhook, allowing a Cluster Admin to store a malformed regex that later reached regexp.MustCompile in pkg/api/forbidden_list.go through internal/webhook/node/user_metadata.go and crashed the node admission webhook on Node create, update, or patch requests. This issue is fixed in version 0.13.8.

CVSS v3
6.8
EG Score
6.8(medium)
EG Risk
47(Track)
EG Risk 47/100SSVC: 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
Severity68% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

July 30, 2026

Last Modified

July 31, 2026

Advisory Details (2)

Auto-updated Jul 30, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_release.
github_release Patch Available

v0.13.8

Patch available: projectcapsule/capsule v0.13.8

https://github.com/projectcapsule/capsule/releases/tag/v0.13.8
github Patch Available🟡 PoC Available

CapsuleConfiguration NodeMetadata regex fields lack webhook validation, allowing MustCompile panic on all Node admission requests · Advisory · projectcapsule/capsule · GitHub

https://github.com/projectcapsule/capsule/security/advisories/GHSA-68cj-mvg9-rgm2

Vendor Advisories for CVE-2026-65834(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/projectcapsule/capsule—0.13.8—

Weakness Classification(2)

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

Data Freshness Timeline

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

Frequently asked(5)

What is CVE-2026-65834?
CVE-2026-65834 is a medium vulnerability published on July 30, 2026. Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex were not validated by the configuration admission webhook, allowing a Cluster…
When was CVE-2026-65834 disclosed?
CVE-2026-65834 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on July 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65834 actively exploited?
CVE-2026-65834 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 80.9% of all scored CVEs.
What is the CVSS score of CVE-2026-65834?
CVE-2026-65834 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-65834?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65834, 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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