CVE-2026-40819
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 · uneditedAn unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the sync_data24 task due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.
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 confidenceAn unauthenticated remote attacker can exploit a SQL Injection vulnerability in the sync_data24 task by injecting malicious SQL code through unsanitized input in a SELECT query, potentially allowing unauthorized data access.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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.
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Locate the sync_data24 task in the applicationSearch the application codebase or configuration files for references to 'sync_data24' - check task schedules, module imports, and configuration files where periodic data sync tasks are definedAffected if The sync_data24 task is present and actively used in the environment, making it a potential target for exploitation
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Verify database connectivity is enabledExamine the application's database configuration to confirm the sync_data24 task has active database connections. Check database connection strings, ORM configuration, or any data access layer code used by this taskAffected if The sync_data24 task has configured database connectivity, providing the pathway for SQL injection to execute
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Inspect input handling in sync_data24 SELECT queriesReview the source code of the sync_data24 task to identify any SELECT queries that accept user-supplied or external input without proper parameterization. Look for string concatenation or direct query building using external dataAffected if The task contains SELECT queries that directly incorporate unsanitized external input into SQL statements
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Check application and database logs for exploitation indicatorsReview web application logs, database query logs, and audit logs for unusual or malicious SQL patterns submitted to sync_data24 endpoints. Look for SQL injection payloads, unexpected WHERE clauses, or UNION-based attemptsAffected if Logs show SQL injection payloads targeting sync_data24 or abnormal SELECT queries originating from this component
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Determine if the sync_data24 endpoint is exposed without authenticationVerify the access control configuration for the sync_data24 task or its associated web endpoint. Confirm whether authentication is required or if it can be reached anonymouslyAffected if The sync_data24 task or its associated interface is accessible without authentication, allowing unauthributed attackers to inject malicious SQL
The environment is affected if the sync_data24 task is present with database connectivity, contains SELECT queries with unsanitized input, and is accessible without authentication.
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 dataImplement parameterized queries or prepared statements for all database operations in the sync_data24 task to prevent SQL injection, and apply the principle of least privilege to database accounts.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-40819 — 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-2026-40819 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
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