CVE-2026-27969

CRITICAL EPSS 32.1%
Published Feb 26, 20264mo ago · Modified Jun 17, 20262w ago
9.3 CVSS 4.0
Critical
Find Similar
Published Feb 26, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

Description

Vitess is a database clustering system for horizontal scaling of MySQL. Prior to versions 23.0.3 and 22.0.4, anyone with read/write access to the backup storage location (e.g. an S3 bucket) can manipulate backup manifest files so that files in the manifest — which may be files that they have also added to the manifest and backup contents — are written to any accessible location on restore. This is a common path traversal security issue. This can be used to provide that attacker with unintended/unauthorized access to the production deployment environment — allowing them to access information available in that environment as well as run any additional arbitrary commands there. Versions 23.0.3 and 22.0.4 contain a patch. No known workarounds are available.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
32.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 2

VendorProductVersionRange
linuxfoundationvitess* <22.0.4
linuxfoundationvitess*≥23.0.0  –  <23.0.3

References 3

  • github.com https://github.com/vitessio/vitess/commit/c565cab615bc962bda061dcd645aa7506c59ca4a
    Patch
  • github.com https://github.com/vitessio/vitess/pull/19470
    Issue TrackingPatch
  • github.com https://github.com/vitessio/vitess/security/advisories/GHSA-r492-hjgh-c9gw
    PatchVendor Advisory

Remediation

  • github.com https://github.com/vitessio/vitess/commit/c565cab615bc962bda061dcd645aa7506c59ca4a
    Patch
  • github.com https://github.com/vitessio/vitess/pull/19470
    Issue TrackingPatch
  • github.com https://github.com/vitessio/vitess/security/advisories/GHSA-r492-hjgh-c9gw
    PatchVendor Advisory