Authenticated access extension via unclamped token lifetime
Published Nov 30, 2025 · Updated Dec 1, 2025
Token-lifetime enforcement in Oxide Computer Company Omicron 15 through 17 allows remote authenticated users to extend API access. The Nexus device-auth confirmation path calculates a new token expiration from the requested or silo-maximum TTL without bounding it to the authenticating device token's expiration. A valid API token is required; the flaw preserves existing privileges beyond the original expiration but does not grant additional privileges.
Summary
What happened
Token-lifetime enforcement in Oxide Computer Company Omicron 15 through 17 allows remote authenticated users to extend API access. The Nexus device-auth confirmation path calculates a new token expiration from the requested or silo-maximum TTL without bounding it to the authenticating device token's expiration. A valid API token is required; the flaw preserves existing privileges beyond the original expiration but does not grant additional privileges.
The record
- CVE
- CVE-2025-66432
- Published
- Nov 30, 2025
- Updated
- Dec 1, 2025
- Vendor
- Oxide Computer Company
- Product
- Omicron
- Classifications
- CWE-420, T1098
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 30, 2025CVE publishedPublication date reported by the CVE source.
- Dec 1, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=15 <17.1
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What is affected?
Published CVSS scores
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Attacks
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Public exploit references
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Technologies
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Your stack
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