Authenticated access via expired JWT acceptance
Published Aug 25, 2026 · Updated Aug 25, 2026
Insufficient session expiration in TYPO3 SYSSY Extension before 3.0.6 allows remote authenticated users to reuse expired JWTs. The authentication path accepts a client-supplied JWT after expiration because it does not enforce the token's expiry claim. Possession of the affected SYSSY project's API key is required, and successful reuse grants access to the protected monitoring interface.
Summary
What happened
Insufficient session expiration in TYPO3 SYSSY Extension before 3.0.6 allows remote authenticated users to reuse expired JWTs. The authentication path accepts a client-supplied JWT after expiration because it does not enforce the token's expiry claim. Possession of the affected SYSSY project's API key is required, and successful reuse grants access to the protected monitoring interface.
The record
- CVE
- CVE-2026-77130
- Published
- Aug 25, 2026
- Updated
- Aug 25, 2026
- Vendor
- in2code GmbH
- Product
- SYSSY TYPO3 Extension
- Classifications
- CWE-613, T1550.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 25, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 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?
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- Affected versionversion=0 <3.0.6
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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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