GHSA-382q-fpqh-29f7: Polymarket clients sdk `polymarket-clients-sdk` Was Removed From Crates.io Vulnerability

CRITICAL
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Advisory Summary

GHSA-382q-fpqh-29f7 is a CRITICAL `polymarket-clients-sdk` was removed from crates.io vulnerability (General Security Weakness) affecting Polymarket clients sdk libraries in the crates.io ecosystem. The issue involves `polymarket-clients-sdk` was removed from crates.io for malicious code. Remediation is available in the latest vendor maintenance releases.

GHSA-382q-fpqh-29f7 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-382q-fpqh-29f7
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Polymarket clients sdk
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-382q-fpqh-29f7

To remediate this vulnerability, upgrade all affected Polymarket clients sdk dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

polymarket-clients-sdk fixed: Latest secure release 
Upgrade polymarket-clients-sdk to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for polymarket-clients-sdk

How to Check if You Are Affected

To determine whether your application is affected by GHSA-382q-fpqh-29f7, inspect your project dependencies for Polymarket clients sdk:

inspect dependencies for polymarket-clients-sdk

Analyze the terminal output to locate any version of Polymarket clients sdk in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Polymarket clients sdk, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

It appeared to be typosquatting existing crate [`polymarket-client-sdk`](https://crates.io/crates/polymarket-client-sdk) (`clients` vs `client`) and attempting to steal credentials from local files. The malicious crate had 6 versions published on 2026-02-05 and had been downloaded only 59 times. There were no crates depending on this crate on crates.io. Polymarket thanks [Socket.dev](https://socket.dev/) for detecting and reporting this to the crates.io team!

GHSA-382q-fpqh-29f7 Affected Polymarket clients sdk Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
polymarket-clients-sdk
 crates.io

References

Polymarket clients sdk Source Repository REPOSITORY
https://github.com/Polymarket/rs-clob-client
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2026-0010.html

Frequently Asked Questions

What is GHSA-382q-fpqh-29f7?
GHSA-382q-fpqh-29f7 is a security vulnerability in Polymarket clients sdk involving `polymarket-clients-sdk` was removed from crates.io for malicious code under General Security Weakness.
Which Polymarket clients sdk versions are affected?
Affected versions include releases prior to current release patches across affected packages: polymarket-clients-sdk.
What version fixes GHSA-382q-fpqh-29f7?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is polymarket-clients-sdk affected?
Yes, polymarket-clients-sdk is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with GHSA-382q-fpqh-29f7?
GHSA-382q-fpqh-29f7 is classified under General Security Weakness.
How can I check crates.io dependencies for GHSA-382q-fpqh-29f7?
Run the dependency tree command: 'inspect dependencies for polymarket-clients-sdk'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-382q-fpqh-29f7",
  "modified" : "2026-02-06T20:56:19Z",
  "published" : "2026-02-06T20:56:19Z",
  "aliases" : [ ],
  "summary" : "`polymarket-clients-sdk` was removed from crates.io for malicious code",
  "details" : "It appeared to be typosquatting existing crate [`polymarket-client-sdk`](https://crates.io/crates/polymarket-client-sdk) (`clients` vs `client`) and attempting to steal credentials from local files.\n\nThe malicious crate had 6 versions published on 2026-02-05 and had been downloaded only 59 times. There were no crates depending on this crate on crates.io.\n\nPolymarket thanks [Socket.dev](https://socket.dev/) for detecting and reporting this to the crates.io team!",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "polymarket-clients-sdk"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "PACKAGE",
    "url" : "https://github.com/Polymarket/rs-clob-client"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2026-0010.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-06T20:56:19Z",
    "nvd_published_at" : null
  }
}