CVE-2026-62283

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (44th percentile of EPSS-scored CVEs). 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
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Nezha versions 1.14.13 through 1.14.14 and 2.0.0 through 2.0.9 do not bind stream identifiers created by CreateStream in service/rpc/io_stream.go to their creating user, and GET /ws/terminal/:id and GET /ws/file/:id only check whether the supplied UUID exists. An authenticated RoleMember who obtains a live stream UUID from logs, browser history, referer data, or telemetry can attach to another user's terminal or file-manager session, read and write target-server files, and execute shell commands. This issue is fixed in version 2.0.10.

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
44th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 21, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Sep 30, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit.
githubMentions a patch (unverified)🟡 PoC Available

Cross-tenant terminal/file-manager session hijack via WebSocket stream UUID without ownership check · Advisory · nezhahq/nezha · GitHub

https://github.com/nezhahq/nezha/security/advisories/GHSA-q6xx-5vr8-p898
github_release Patch Available

v2.0.10

Patch available: nezhahq/nezha v2.0.10

https://github.com/nezhahq/nezha/releases/tag/v2.0.10
github_commit

commit 6661d6a7fc1c (nezhahq/nezha)

Fix landed in nezhahq/nezha commit 6661d6a7fc1c — awaiting tagged release

https://github.com/nezhahq/nezha/commit/6661d6a7fc1c269f55c7f4e775082ad23fbe0f54

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/nezhahq/nezha—
  • 1.14.13 through 1.14.14: no fix on record
  • 2.0.0 up to 2.0.10: fixed in 2.0.10
  • every version on: no fix on record
  • 1.14.13 on: no fix on record
—

Weakness Classification(2)

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

Data Freshness Timeline

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

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Frequently asked(5)

What is CVE-2026-62283?
CVE-2026-62283 is a critical vulnerability published on August 21, 2026. Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Nezha versions 1.14.13 through 1.14.14 and 2.0.0 through 2.0.9 do not bind stream identifiers created by CreateStream in service/rpc/io_stream.go to their creating user, and GET /ws/terminal/:id and GET…
When was CVE-2026-62283 disclosed?
CVE-2026-62283 was first published on August 21, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62283 actively exploited?
CVE-2026-62283 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62283?
CVE-2026-62283 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-62283?
A fix for CVE-2026-62283 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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