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CRITICAL severity

Deserialization of Untrusted Data in topthink/frameworkGHSA-3fpv-54ff-wqfj

CRITICALFix: top-think/framework@d3b5aea

GHSA-3fpv-54ff-wqfj is a critical-severity (CVSS 9.8) Deserialization of Untrusted Data vulnerability in topthink/framework. A fix is available for topthink/framework — see the affected versions and patch details below.

Also known asCVE-2021-23592SNYK-PHP-TOPTHINKFRAMEWORK-2385695
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.8%probability of exploitation in next 30 days
Lower Risk+0.03%
Lower risk than most CVEs78th percentile — riskier than 78% of all scored CVEsHighest risk
0.51%1.09%1.68%2.27%1.0%1.8%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘topthink/framework

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

The package topthink/framework before version 6.0.12 is vulnerable to Deserialization of Untrusted Data due to insecure unserialize method in the Driver class.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagisttopthink/frameworkall versions6.0.12composer require topthink/framework:^6.0.12

Affected Products

1 product · 1 configurations
Application
thinkphpthinkphp
< 6.0.12
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for topthink/framework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update topthink/framework to 6.0.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3fpv-54ff-wqfj is resolved across your whole dependency graph.

  3. Workarounds

    Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Frequently Asked Questions

The package topthink/framework before version 6.0.12 is vulnerable to Deserialization of Untrusted Data due to insecure `unserialize` method in the `Driver` class.
O3 Security · Impact-Aware SCA

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Deserialization of Untrusted Data in topthink/framework