CVE-2015-5906
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 · uneditedThe HTML form implementation in WebKit in Apple iOS before 9 does not prevent QuickType access to the final character of a password, which might make it easier for remote attackers to discover a password by leveraging a later prediction containing that character.
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 confidenceWebKit's HTML form implementation in iOS before version 9 failed to properly isolate password field contents from the QuickType predictive keyboard, allowing the final character of a password to be exposed through keyboard suggestions.
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<= 8.4.1CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/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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Check iOS version installedGo to Settings > General > About > Version to view the installed iOS version numberAffected if Version is 8.4.1 or lower (any version up to and including 8.4.1)
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Verify QuickType keyboard is enabledGo to Settings > General > Keyboard > Keyboards > Add New Keyboard and confirm QuickType keyboards are listed and enabledAffected if Any QuickType predictive keyboard is enabled on the device
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Confirm WebKit-based input usageUse Safari or any app with WebKit-based password input fields (login forms, secure fields) and observe keyboard suggestions while typing in a password fieldAffected if Password fields in WebKit-based applications are being used with QuickType active
The device is affected if iOS version is 8.4.1 or earlier AND QuickType predictive keyboard is enabled while entering password data in WebKit-based applications.
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 dataUpgrade affected iOS devices to version 9 or later, which contains the fix preventing QuickType from accessing password field contents.
- Consultation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2015-5906 — 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-2015-5906 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