CVE-2026-34747
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 · uneditedPayload is a free and open source headless content management system. Prior to version 3.79.1, certain request inputs were not properly validated. An attacker could craft requests that influence SQL query execution, potentially exposing or modifying data in collections. This issue has been patched in version 3.79.1.
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 · high confidencePayload CMS versions before 3.79.1 contain an SQL injection vulnerability due to improper input validation on certain request inputs. Attackers can craft malicious requests to influence SQL query execution, potentially allowing unauthorized access to or modification of data stored in database collections.
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< 3.79.1CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/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.
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Identify installed Payload CMS versionLocate the package.json file in the Payload CMS project directory and check the 'payload' or '@payloadcms/*' package version, or run 'npm list @payloadcms/' or 'yarn list @payloadcms/' depending on your package managerAffected if The version listed is lower than 3.79.1 (e.g., 3.79.0, 3.78.0, etc.)
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Verify application is running and accessibleConfirm the Payload CMS application is currently running and accessible over HTTP/HTTPS, as the SQL injection vulnerability is exploited via crafted request inputsAffected if The application is running and accepting external or internal requests
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Check for unusual database query patternsReview application logs, database query logs, or monitoring tools for unexpected or suspicious SQL query patterns that may indicate exploitation attemptsAffected if Unusual or malicious SQL query patterns are present in logs or monitoring outputs
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Review API endpoint access patternsExamine access logs for API endpoints, particularly collection endpoints that accept user input, for signs of injection attempts using SQL meta-characters in parametersAffected if Recent request logs show attempts to inject SQL syntax into query parameters
You are affected if your installed Payload CMS version is below 3.79.1 and the application is accessible to process requests.
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.
dbcve · scoped3.79.1
Upgrade Payload CMS to version 3.79.1 or later to apply the patched input validation. If immediate upgrade is not possible, implement additional input sanitization and web application firewall rules as a temporary mitigation.
3.79.1
- Backup your database and application data before proceeding with the upgrade
- Update Payload CMS dependency to version 3.79.1 by running: npm install payload@^3.79.1 or yarn add payload@^3.79.1
- Run database migrations if any are required: npm run migrate or the equivalent for your setup
- Verify the installation was successful by checking the Payload version and ensuring the application starts without errors
- Test your application functionality to confirm the upgrade did not break existing features
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-34747 — 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-2026-34747 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
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- 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