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🐍 PyPI

GHSA-4f84-67cv-qrv3

A single post-release of dydx-v4-client contained obfuscated multi-stage loader

Published
Feb 6, 2026
Updated
Feb 6, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐍dydx-v4-client

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

Description

A PyPI user account compromised by an attacker and was able to upload a malicious version (1.1.5.post1) of the dydx-v4-client package. This version contains a highly obfuscated multi-stage loader that ultimately executes malicious code on the host system.

While the final payload is not visible because it is tucked away inside 100 layers of encoding, the structural design—specifically the use of recursive decompression followed by an exec() call is a definitive indicator of malicious software, likely a "Crypter" or "Dropper" masquerading as a cryptocurrency-related utility with the intent on connecting to hxxps://dydx[.]priceoracle[.]site/py to download and execute further payloads.

Users of the dydx-v4-client package should immediately uninstall version 1.1.5.post1and revert to the last known good version (1.1.5) or later secure versions once available. Additionally, users should monitor their systems for any unusual activity and consider running security scans to detect any potential compromise.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIdydx-v4-client1.1.5.post1&&< 1.1.51.1.5

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for dydx-v4-client. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update dydx-v4-client to 1.1.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4f84-67cv-qrv3 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-4f84-67cv-qrv3 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-4f84-67cv-qrv3. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A PyPI user account compromised by an attacker and was able to upload a malicious version (1.1.5.post1) of the `dydx-v4-client` package. This version contains a highly obfuscated multi-stage loader that ultimately executes malicious code on the host system. While the final payload is not visible because it is tucked away inside 100 layers of encoding, the structural design—specifically the use of recursive decompression followed by an `exec()` call is a definitive indicator of malicious software, likely a "Crypter" or "Dropper" masquerading as a cryptocurrency-related utility with the intent
O3 Security · Impact-Aware SCA

Is GHSA-4f84-67cv-qrv3 in your dependencies?

O3 detects GHSA-4f84-67cv-qrv3 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.