CVE-2026-65959

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-08-18. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Vitess is a database clustering system for horizontal scaling of MySQL. In 24.0.2 and earlier, the /debug/vrlog endpoint registered by addHttpEndpoint() in go/vt/vttablet/tabletmanager/vreplication/vrlog.go invokes vrlogStatsHandler() without acl.CheckAccessHTTP(r, acl.DEBUGGING), unlike comparable debug endpoints. A remote caller who can reach the vttablet debug HTTP port can bypass the configured security policy and stream VrLogStats data produced from NewVrLogStats().Send(), including literal SQL statements and bound application values from MoveTables, Reshard, Materialize, and vitess-strategy Online DDL workflows

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity53% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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 18, 2026

Last Modified

September 18, 2026

Advisory Details (4)

Auto-updated Aug 18, 2026
Patch available. Sources: github, github_commit.
github_commit

commit d929225a4500 (vitessio/vitess)

Fix landed in vitessio/vitess commit d929225a4500 — awaiting tagged release

https://github.com/vitessio/vitess/commit/d929225a450027406687d27af8dca45620945ceb
github_commit

commit 657662e78bde (vitessio/vitess)

Fix landed in vitessio/vitess commit 657662e78bde — awaiting tagged release

https://github.com/vitessio/vitess/commit/657662e78bde1c82df680e9cc43a686d619f8094
github_commit

commit 4c58cd70edc6 (vitessio/vitess)

Fix landed in vitessio/vitess commit 4c58cd70edc6 — awaiting tagged release

https://github.com/vitessio/vitess/commit/4c58cd70edc6b03d61cb65842c342ac08341e64f
githubMentions a patch (unverified)

Missing authorization on vttablet /debug/vrlog exposes live VReplication SQL data · Advisory · vitessio/vitess · GitHub

https://github.com/vitessio/vitess/security/advisories/GHSA-mhc4-g3wh-cw7m

Vendor Advisories for CVE-2026-65959(2)

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 / EcosystemFix (by version range) / PatchReleasedSource
govitess.io/vitess—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)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
vitess.io/vitess—
  • 0.24.0-rc1 through 0.24.2: no fix on record
  • every version through 0.23.6: no fix on record
  • every version up to 0.23.6: fixed in 0.23.6
  • 0.24.0-rc1 up to 0.24.3: fixed in 0.24.3
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 91× 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 139 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-65959?
CVE-2026-65959 is a medium vulnerability published on August 18, 2026. Vitess is a database clustering system for horizontal scaling of MySQL. In 24.0.2 and earlier, the /debug/vrlog endpoint registered by addHttpEndpoint() in go/vt/vttablet/tabletmanager/vreplication/vrlog.go invokes vrlogStatsHandler() without acl.CheckAccessHTTP(r, acl.DEBUGGING), unlike comparable…
When was CVE-2026-65959 disclosed?
CVE-2026-65959 was first published on August 18, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65959 actively exploited?
CVE-2026-65959 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-65959?
CVE-2026-65959 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-65959?
A fix for CVE-2026-65959 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-65959 are linked in the Vendor Advisories panel on this page.

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