CVE-2026-65959: vitessio vitess Missing Authorization
Vulnerability summary
CVE-2026-65959 is a medium (CVSS 5.3) Missing Authorization vulnerability in vitessio vitess. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 4Timeline
- 18-08-2026PublishedVulnerability first disclosed.
- 18-08-2026Last modifiedVulnerability information updated.
Description
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 metrics
5 scores · 5 sources · 1 version- OSV · WolfiEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · GoEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · ChainguardEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
+0.03 pp
From 0.39% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard7 products
- vitess-22All versions (No fix recorded)
- vitess-22-binariesAll versions (No fix recorded)
- vitess-23< 23.0.7-r0
- vitess-23-binaries< 23.0.7-r0
- vitess-24< 24.0.3-r0
Wolfi5 products
- vitess-23< 23.0.7-r0
- vitess-23-binaries< 23.0.7-r0
- vitess-24< 24.0.3-r0
- vitess-24-binaries< 24.0.3-r0
- vitess-24-compat< 24.0.3-r7
Vitess.io1 product
- vitess≥ 0.24.0-rc1, ≤ 0.24.2 | ≤ 0.23.6 | ≥ 0.24.0-rc1, < 0.24.3
Vitessio1 product
- vitess≤ 24.0.2
4 vendors · 14 products
References
8 links- github.com/vitessio/vitessPACKAGE