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Not in CISA KEV
HIGH severity

CVE-2021-43857 — gerapy

HIGHFix: Gerapy/Gerapy@49bcb19

CVE-2021-43857 is a high-severity (CVSS 8.8) OS Command Injection vulnerability in gerapy. 4 public exploit references exist, so weaponization risk is real. A fix is available for gerapy — see the affected versions and patch details below.

Gerapy may cause remote code execution

Also known asGHSA-9w7f-m4j4-j3xwPYSEC-2021-867
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
4 known
Exploitation data as of Oct 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
55.3%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
47.9%51.0%54.0%57.0%49.6%55.3%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2021-43857 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 385,987 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🐍gerapy

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

Impact

project_configure function exist remote code execute in Gerapy < 0.9.8

Patches

Patched in version 0.9.8, please install with:

pip3 install -U gerapy

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIgerapyall versions0.9.8pip install --upgrade 'gerapy==0.9.8'

Affected Products

1 product · 1 configurations
Application
gerapygerapy
< 0.9.8
range
Exploits & PoCs
4

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

EDB-50640remotepython

Gerapy 0.9.7 - Remote Code Execution (RCE) (Authenticated)

by Jeremiasz Pluta · Jan 5, 2022

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update gerapy to 0.9.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-43857 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

### Impact project_configure function exist remote code execute in Gerapy < 0.9.8 ### Patches Patched in version 0.9.8, please install with: ``` pip3 install -U gerapy ```
O3 Security · Impact-Aware SCA

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CVE-2021-43857: gerapy — Fixed in 0.9.8