CVE-2026-8876
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 · uneditedVersion 3.0.7 of the Securly Chrome Extension contains hardcoded, plaintext AES passphrases in securly.min.js. These keys decrypt crisis alert keyword data and intervention site data.
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 confidenceThe Securly Chrome Extension version 3.0.7 contains hardcoded AES passphrases in plaintext within the securly.min.js file. These keys are used to decrypt crisis alert keyword data and intervention site data. Attackers can extract these keys from the extension code and decrypt the sensitive data that was intended to be protected.
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= 3.0.7CVSS 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
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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.
-
Verify Securly Chrome Extension is installedOpen Chrome and navigate to chrome://extensions/ or check for the Securly extension in the browser toolbar. On Windows, the extension files are typically located in %LOCALAPPDATA%\Google\Chrome\User Data\Default\Extensions\. On macOS, check ~/Library/Application Support/Google/Chrome/Default/Extensions/.Affected if The Securly extension is present in the browser or filesystem
-
Check the installed extension versionIn Chrome://extensions/, enable Developer mode, then find Securly and read the version number from the extension details. Alternatively, check the manifest.json file in the extension folder for the 'version' field.Affected if Version is exactly 3.0.7
-
Locate the securly.min.js fileNavigate to the Securly extension folder in the Chrome extensions directory. The file is named securly.min.js and is typically found in the root of the extension folder.Affected if The securly.min.js file exists in the extension directory
-
Search for hardcoded AES keys in securly.min.jsOpen securly.min.js with a text editor or use grep to search for AES-related strings such as 'AES', 'encrypt', 'decrypt', 'key', 'passphrase', or cryptographic key patterns (typically 16, 24, or 32 character strings used as encryption keys). Look for plaintext strings that appear to be encryption keys or passwords.Affected if Hardcoded plaintext AES encryption keys or passphrases are found in the file (strings used as encryption keys that are embedded directly in the code)
The environment is affected if the Securly Chrome Extension version 3.0.7 is installed and the securly.min.js file contains hardcoded plaintext AES encryption keys that can be used to decrypt sensitive data.
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 dataRemove all hardcoded AES passphrases from the extension code and implement a secure key management solution, such as retrieving encryption keys from a trusted server-side service at runtime rather than embedding them in client-side JavaScript.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 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 $4,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-8876 — 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-2026-8876 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