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%CVSS: 5.3Exploit: None knownExposed: 0

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

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
5.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

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
github Patch Available

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(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
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 rangeFixed inDependents
vitess.io/vitess———

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 24× in last 7d / 74× 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. 2026-09-18 20:09 UTCEG score recompute
  2. 2026-09-18 20:09 UTCVendor advisory
  3. 2026-09-18 20:09 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 07:51 UTCEG score recompute
  6. 2026-09-18 07:51 UTCVendor advisory
  7. 2026-09-18 07:51 UTCGHSA enrichment
  8. 2026-09-17 07:46 UTCEG score recompute
  9. 2026-09-17 07:46 UTCVendor advisory
  10. 2026-09-17 07:46 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 07:26 UTCEG score recompute
  13. 2026-09-16 07:26 UTCVendor advisory
  14. 2026-09-16 07:26 UTCGHSA enrichment
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 07:20 UTCEG score recompute
  17. 2026-09-15 07:20 UTCVendor advisory
  18. 2026-09-15 07:20 UTCGHSA enrichment
  19. 2026-09-14 07:14 UTCEG score recompute
  20. 2026-09-14 07:14 UTCVendor advisory
  21. 2026-09-14 07:14 UTCGHSA enrichment
  22. 2026-09-13 07:09 UTCEG score recompute
  23. 2026-09-13 07:09 UTCVendor advisory
  24. 2026-09-13 07:09 UTCGHSA enrichment
  25. 2026-09-12 07:04 UTCEG score recompute
Show 54 more
  1. 2026-09-12 07:04 UTCVendor advisory
  2. 2026-09-12 07:04 UTCGHSA enrichment
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 09:37 UTCEPSS rescore
  5. 2026-09-11 06:58 UTCEG score recompute
  6. 2026-09-11 06:58 UTCGHSA enrichment
  7. 2026-09-10 06:53 UTCGHSA enrichment
  8. 2026-09-09 06:47 UTCEG score recompute
  9. 2026-09-09 06:47 UTCGHSA enrichment
  10. 2026-09-08 22:01 UTCEPSS rescore
  11. 2026-09-08 06:42 UTCEG score recompute
  12. 2026-09-08 06:42 UTCVendor advisory
  13. 2026-09-08 06:42 UTCGHSA enrichment
  14. 2026-09-07 16:01 UTCEPSS rescore
  15. 2026-09-07 06:37 UTCEG score recompute
  16. 2026-09-07 06:37 UTCGHSA enrichment
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-06 06:19 UTCEG score recompute
  19. 2026-09-06 06:19 UTCGHSA enrichment
  20. 2026-09-05 15:31 UTCEPSS rescore
  21. 2026-09-05 06:07 UTCEG score recompute
  22. 2026-09-05 06:07 UTCGHSA enrichment
  23. 2026-09-04 05:59 UTCEG score recompute
  24. 2026-09-04 05:59 UTCGHSA enrichment
  25. 2026-09-04 05:07 UTCEPSS rescore
  26. 2026-09-03 05:48 UTCEG score recompute
  27. 2026-09-03 05:48 UTCGHSA enrichment
  28. 2026-09-02 14:12 UTCEPSS rescore
  29. 2026-09-02 04:38 UTCEG score recompute
  30. 2026-09-01 13:54 UTCEPSS rescore
  31. 2026-09-01 04:40 UTCEPSS rescore
  32. 2026-08-31 03:58 UTCEG score recompute
  33. 2026-08-30 19:17 UTCEPSS rescore
  34. 2026-08-30 03:53 UTCEG score recompute
  35. 2026-08-30 01:22 UTCEPSS rescore
  36. 2026-08-29 03:47 UTCEG score recompute
  37. 2026-08-28 21:42 UTCEPSS rescore
  38. 2026-08-27 20:35 UTCEG score recompute
  39. 2026-08-26 20:12 UTCEG score recompute
  40. 2026-08-26 14:47 UTCEPSS rescore
  41. 2026-08-25 20:03 UTCEG score recompute
  42. 2026-08-25 13:49 UTCEPSS rescore
  43. 2026-08-24 19:55 UTCEG score recompute
  44. 2026-08-23 19:50 UTCEG score recompute
  45. 2026-08-23 00:19 UTCEPSS rescore
  46. 2026-08-22 19:45 UTCEG score recompute
  47. 2026-08-21 23:49 UTCEPSS rescore
  48. 2026-08-21 19:40 UTCEG score recompute
  49. 2026-08-20 22:56 UTCEPSS rescore
  50. 2026-08-19 19:30 UTCEG score recompute
  51. 2026-08-19 17:04 UTCEPSS rescore
  52. 2026-08-18 19:24 UTCEG score recompute
  53. 2026-08-18 18:29 UTCEG score recompute
  54. 2026-08-18 18:28 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 75.6% of all scored CVEs.
What is the CVSS score of CVE-2026-65959?
CVE-2026-65959 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-65959?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65959, 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-2026-65959

Explore →

Is Your Infrastructure Affected by CVE-2026-65959?

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

Start Free Scan →Browse All CVEs