Security readout for executives and security teams
Plain-English summary
CVE-2026-27969 affects Vitess restore operations. If someone can read and write the backup storage location, they can tamper with backup manifests so restore writes files outside intended paths. That could give unintended access to the production environment and enable arbitrary command execution. Patched versions are 22.0.4 and 23.0.3.
Executive priority
Prioritize quickly for Vitess environments with cloud or shared backup storage. The vulnerability is critical because backup tampering can cross into production during restore. Organizations not running Vitess, not using affected versions, or tightly controlling backup write access have lower immediate exposure.
Technical view
Vitess before 22.0.4 and 23.0.3 has a CWE-22 path traversal issue in backup restore handling. A high-privilege actor with backup storage read/write access can manipulate manifest file paths, causing restore to write attacker-controlled backup contents to arbitrary accessible locations. CVSS v4.0 is 9.3 critical.
Likely exposure
Exposure is limited to Vitess deployments using affected versions and backup storage where an actor has read/write access. Risk is highest where backup storage permissions are broad, shared, or accessible from compromised CI/CD, cloud, or operations accounts.
Exploitation context
The advisory requires backup storage read/write access and a restore action, with user interaction noted in the CVSS vector. The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Successful abuse could affect confidentiality, integrity, and availability of the production environment.
Researcher notes
Key constraints matter: the attacker needs read/write access to backup storage and a restore path must process the manipulated manifest. Sources state no known workarounds and identify patches in 22.0.4 and 23.0.3. Do not assume internet-exploitable exposure without evidence of exposed backup storage access.
Mitigation direction
- Upgrade Vitess 22.x to 22.0.4 or later.
- Upgrade Vitess 23.x to 23.0.3 or later.
- Restrict backup storage read/write permissions to trusted restore processes.
- Review vendor advisory for any updated operational guidance.
- Treat backup storage credentials as sensitive production-impacting secrets.
Validation and detection
- Inventory Vitess versions across production, staging, and disaster recovery environments.
- Identify deployments using versions before 22.0.4 or 23.0.3.
- Review who or what has write access to Vitess backup storage.
- Check recent restore activity for unexpected timing or operators.
- Confirm restored systems are running patched Vitess versions after remediation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-27969 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (4.0)
- Known Exploited
- No
- Published
Vector: 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
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/vitessio/vitess/security/advisories/GHSA-r492-hjgh-c9gwCVE reference · x_refsource_CONFIRM
- https://github.com/vitessio/vitess/pull/19470CVE reference · x_refsource_MISC
- https://github.com/vitessio/vitess/commit/c565cab615bc962bda061dcd645aa7506c59ca4aCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.