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CRITICAL severity

CVE-2024-0521 — paddlepaddle

CRITICAL

CVE-2024-0521 is a critical-severity (CVSS 9.3) Code Injection vulnerability in paddlepaddle. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for paddlepaddle — see the affected versions and patch details below.

Code Injection in paddlepaddle

Also known asPYSEC-2026-444
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-0521.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs40th percentile — riskier than 40% of all scored CVEsHighest risk
0.00%0.32%0.64%0.96%0.1%0.5%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
🐍paddlepaddle

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

The vulnerability arises from the way the url parameter is incorporated into the command string without proper validation or sanitization. If the url is constructed from untrusted sources, an attacker could potentially inject malicious commands.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIpaddlepaddleall versions2.6.0pip install --upgrade 'paddlepaddle==2.6.0'

Affected Products

1 product · 1 configurations
Application
paddlepaddlepaddle
all
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

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

  2. Fix

    Update paddlepaddle to 2.6.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-0521 is resolved across your whole dependency graph.

  3. Workarounds

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Frequently Asked Questions

The vulnerability arises from the way the url parameter is incorporated into the command string without proper validation or sanitization. If the url is constructed from untrusted sources, an attacker could potentially inject malicious commands.
O3 Security · Impact-Aware SCA

Is CVE-2024-0521 in your dependencies?

Find it across PyPI, including transitive dependencies.

CVE-2024-0521: paddlepaddle — Fixed in 2.6.0