Credential deletion via undisclosed Authentication Services flaw
Published Sep 14, 2026 · Updated Sep 14, 2026
Credential deletion in Authentication Services in Apple OS releases before 27 allows attackers to delete Keychain credentials via a local app. Apple identifies Authentication Services as the affected component but has not disclosed which code path permits unauthorized Keychain deletion. Exploitation requires code execution as an app on the device and can remove stored credentials; no credential disclosure or remote reachability is reported.
Summary
What happened
Credential deletion in Authentication Services in Apple OS releases before 27 allows attackers to delete Keychain credentials via a local app. Apple identifies Authentication Services as the affected component but has not disclosed which code path permits unauthorized Keychain deletion. Exploitation requires code execution as an app on the device and can remove stored credentials; no credential disclosure or remote reachability is reported.
The record
- CVE
- CVE-2026-86905
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- T1485
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 14, 2026CVE publishedPublication date reported by the CVE source.
- Sep 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <27
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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