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Vulnerability record · CVE-2026-27969 · published 26 February 2026

CVE-2026-27969: Linuxfoundation vitess path traversal vulnerability

Linuxfoundation · Vitess

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.

9.3 CVSS 4.0 Critical EPSS 0.61% · top 53.2% CWE-22 · Path traversal
9.3CVSS 4.0 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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: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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-27969), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.