CVE-2021-36564 json
Deserialization of Untrusted Data in topthink/framework
published 2021-12-06 4 y ago modified 2026-06-17 4 mo ago also GHSA-33gc-6cw9-w3g4 , EUVD-2021-2429
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
Summary
ThinkPHP v6.0.8 was discovered to contain a deserialization vulnerability via the component vendor\league\flysystem-cached-adapter\src\Storage\Adapter.php.
Patch / fix
- packagist topthink/framework 6.0.9
Exploit prediction
1.92% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/top-think/framework/issues/2559 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | topthink/framework | <6.0.9 |
6.0.9 |
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/top-think/framework/issues/2559
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-36564
advisory
Sources
- CVE List CVE-2021-36564
- GitHub Advisory GHSA-33gc-6cw9-w3g4
- NVD CVE-2021-36564
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