Persistent record-read denial via inconsistent UUID validation
Published Sep 1, 2026 · Updated Sep 1, 2026
Improper input validation in Ash Framework Ash 3.6.3 through 3.32.1 allows attackers to persistently deny reads of UUIDv7 records. Ash.Type.UUIDv7.cast_input/2 stores any well-formed UUID as a binary, but cast_stored/2 rejects stored non-v7 binaries and returns an error. Exploitation requires an application path that lets attackers set the affected attribute; poisoned records remain unreadable on later access.
Summary
What happened
Improper input validation in Ash Framework Ash 3.6.3 through 3.32.1 allows attackers to persistently deny reads of UUIDv7 records. Ash.Type.UUIDv7.cast_input/2 stores any well-formed UUID as a binary, but cast_stored/2 rejects stored non-v7 binaries and returns an error. Exploitation requires an application path that lets attackers set the affected attribute; poisoned records remain unreadable on later access.
The record
- CVE
- CVE-2026-82738
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Vendor
- Ash Framework
- Product
- Ash
- Classifications
- CWE-20, T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 1, 2026CVE publishedPublication date reported by the CVE source.
- Sep 1, 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=3.6.3 <3.32.2
- Affected versionversion=751d8a4d11564efbe358c90c8347f3a00eb60782 <c453cdc0b8570e86ffef0d10e136247f52b3ea76
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Technologies
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Your stack
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