CVE-2021-36564

9.8 criticalEPSS 1.9%

Critical (9.8) in thinkphp thinkphp. EPSS 1.9% chance of exploitation in the next 30 days.

ThinkPHP v6.0.8 was discovered to contain a deserialization vulnerability via the component vendor\league\flysystem-cached-adapter\src\Storage\Adapter.php.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2021-12-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

thinkphp:thinkphp

References

https://github.com/top-think/framework/issues/2559
https://github.com/top-think/framework/issues/2559

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