CVE-2026-46871
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedVulnerability in the MySQL Shell product of Oracle MySQL (component: Shell for VS Code). The supported version that is affected is 2026.2.0+9.6.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Shell. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Shell accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThis is an unauthorized access vulnerability in MySQL Shell's VS Code extension. A low-privileged attacker with network access can exploit this to gain unauthorized access to critical data or all data accessible through MySQL Shell. The attack requires low privilege and low complexity, with high confidentiality impact but no integrity or availability impact.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 2026.2.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Confirm MySQL Shell installationCheck if MySQL Shell is installed on the system. On Windows, look in Program Files or check via command: mysqlsh --version. On Linux/macOS, run: which mysqlsh or mysqlsh --version.Affected if MySQL Shell is installed and the VS Code extension is in use.
-
Identify installed MySQL Shell versionRun the command: mysqlsh --version or mysqlsh --version-full to retrieve the exact version number of the installed MySQL Shell.Affected if The installed version matches 2026.2.0 exactly.
-
Verify VS Code extension statusOpen VS Code and navigate to Extensions panel. Search for 'MySQL Shell' extension. Check if it is installed and enabled.Affected if The MySQL Shell VS Code extension is installed and enabled.
-
Check extension permissions in VS CodeIn VS Code, go to Extensions panel, find MySQL Shell extension, click on the gear icon and select 'Extension Settings' to review granted permissions.Affected if The extension has broad data access permissions granted.
-
Assess network exposureReview firewall rules and network configuration to determine if MySQL Shell or its VS Code extension is accessible over the network from untrusted sources.Affected if MySQL Shell is listening on network interfaces accessible to low-privileged or untrusted users.
You are affected if MySQL Shell version 2026.2.0 is installed with the VS Code extension enabled and the extension has data access permissions in an exposed network environment.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the vendor patch by updating MySQL Shell to the latest patched version. Restrict network access to MySQL Shell and verify VS Code extension permissions.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-46871 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-46871 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data