CVE-2026-40839
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 low privileged remote attacker can exploit an unauthenticated SQL Injection vulnerability in the getComponentScalings function 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 confidenceA SQL injection vulnerability exists in the getComponentScalings function where user-supplied input is not properly neutralized before being used in a SQL SELECT query. This allows unauthenticated remote attackers with low privileges to inject malicious SQL commands, resulting in unauthorized data access and total loss of confidentiality.
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
- 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.
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Identify product and versionLocate the application's version information in installation directories, configuration files, or the application's about/status page. Compare against any available version documentation.Affected if The installed version falls within an affected range (if such ranges become available) or is an unpatched version of the software containing the getComponentScalings function.
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Locate the getComponentScalings functionSearch the application source code for the function named 'getComponentScalings' - this may be in Java, PHP, Python, or other language source files depending on the application framework.Affected if The function exists in the codebase and handles user-supplied input without proper sanitization.
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Inspect SQL query construction in getComponentScalingsExamine the getComponentScalings function code to see how SQL SELECT queries are built. Look for string concatenation or string formatting (e.g., + operator, f-strings, String.format) used to construct SQL statements.Affected if Dynamic SQL queries are constructed using string concatenation or formatting with user input rather than parameterized queries.
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Verify input validation and parameterizationReview the code paths that feed input into getComponentScalings. Check if input is validated, sanitized, or passed as bound parameters to a PreparedStatement or equivalent.Affected if User-supplied parameters are passed directly into SQL queries without using parameterized queries, prepared statements, or input validation/sanitization.
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Assess authentication and authorization requirementsDetermine if the getComponentScalings endpoint/function requires authentication and what privilege level is needed to access it.Affected if The vulnerable function is accessible to unauthenticated users or to users with low privileges, allowing remote attackers to exploit the SQL injection.
The environment is affected if the application contains the getComponentScalings function and uses dynamic SQL query construction with user input without parameterization, particularly if the function is accessible to unauthenticated or low-privilege users.
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 dataReplace dynamic SQL queries with parameterized queries or prepared statements to properly neutralize user input. Apply least-privilege principles to database accounts and validate all input before database interactions.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-40839 — 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-2026-40839 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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