CVE-2026-39669
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 · uneditedMissing Authorization vulnerability in NitroPack allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects NitroPack: from n/a through 1.19.3.
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 confidenceMissing Authorization vulnerability in NitroPack allows attackers to bypass access control checks due to incorrectly configured security levels. The application fails to properly validate user authorization before granting access to protected functionality or resources.
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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 NitroPack installationLocate NitroPack by checking for its core plugin files in the web root (typically in wp-content/plugins/nitropack or similar), or look for the nitropack-php-sdk directory. On CLI, use: find /path/to/webroot -type d -iname '*nitropack*' 2>/dev/nullAffected if NitroPack is not installed on the system
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Determine installed versionCheck the main plugin file (e.g., nitropack.php) or a version.php file within the NitroPack directory for the version constant. Alternatively, if using a CMS, check the plugin admin page for the installed version numberAffected if The installed version is 1.19.3 or any version up to and including 1.19.3
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Verify access control configurationReview the NitroPack configuration file (typically config.yml, config.json, or settings.php within the NitroPack directory) for the 'security_level' or 'access_control' setting. Check if any endpoint is configured with a security level lower than 'authenticated' or 'admin'Affected if Security level is set to 'public', 'none', or any value that permits unauthenticated access to sensitive endpoints
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Test endpoint accessibility without authenticationUsing a tool like curl or a browser incognito mode, attempt to access common NitroPack API endpoints (such as /wp-json/nitropack/v1/, /?nitropack=... or similar) without providing any authentication headers or session cookiesAffected if The endpoint returns sensitive data or performs actions without requiring login credentials
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Inspect admin interface accessNavigate to the NitroPack settings or dashboard area in the CMS admin panel without being logged in, or attempt to access admin URLs directly. Check if the application redirects to a login page or returns a 401/403 errorAffected if The admin area or privileged features are accessible without authentication or return an unexpected 200 status instead of a redirect or forbidden error
A system is affected if NitroPack version 1.19.3 or earlier is installed AND sensitive endpoints or admin functions are accessible without proper authentication verification.
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 proper authorization verification at all access points, ensuring the access control model is correctly configured and enforced throughout the application.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-39669 — 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-2026-39669 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
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