CVE-2026-44211

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-08. the CNA's CVSS baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:github_m, epss, ghsa
Elevated
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.6Exploit: NoneExposed: 0

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

Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. In versions 2.13.0 and prior, there is a cross-origin WebSocket hijack vulnerability in Cline Kanban servers. At time of publication, there are no publicly available patches.

CVSS v3
9.6
EG Score
9.6(medium)
EG Risk
—
EPSS
7.9%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

Advisory Details (1)

Auto-updated Jun 1, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Cross-Origin WebSocket Hijack in Cline Kanban Server · Advisory · cline/cline · GitHub

https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2

Vendor Advisories for CVE-2026-44211(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
npmcline—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
cline———

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× 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.

Showing the most recent 100 of 219 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-44211?
CVE-2026-44211 is a critical vulnerability published on June 1, 2026. Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. In versions 2.13.0 and prior, there is a cross-origin WebSocket hijack vulnerability in Cline Kanban servers. At time of publication, there are no publicly available patches.
When was CVE-2026-44211 disclosed?
CVE-2026-44211 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44211 actively exploited?
CVE-2026-44211 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44211?
CVE-2026-44211 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-44211?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44211, 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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