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🐍 PyPI
Not in CISA KEV
MEDIUM severity

CVE-2022-1930 — eth-account

MEDIUMFix: ethereum/eth-account@70f89be

CVE-2022-1930 is a medium-severity (CVSS 5.9) CWE-1333 vulnerability in eth-account. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for eth-account — see the affected versions and patch details below.

ReDoS in eth-account encode_structured_data function

Also known asGHSA-v65g-f3cj-fjp4PYSEC-2026-806
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.9%probability of exploitation in next 30 days
Lower Risk+0.03%
Lower risk than most CVEs61th percentile — riskier than 61% of all scored CVEsHighest risk
0.00%0.48%0.96%1.44%0.3%0.9%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
🐍eth-account

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

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the eth-account PyPI package, when an attacker is able to supply arbitrary input to the encode_structured_data method

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIeth-accountall versions0.5.9pip install --upgrade 'eth-account==0.5.9'

Affected Products

1 product · 1 configurations
Application
eth-accountethereum
< 0.5.9
range
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.

An exponential ReDoS (Regular Expression Denial of Service) can be trigg…

research.jfrog.comNVDAug 2022

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update eth-account to 0.5.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-1930 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the eth-account PyPI package, when an attacker is able to supply arbitrary input to the encode_structured_data method
O3 Security · Impact-Aware SCA

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CVE-2022-1930: eth-account DoS — Fixed in 0.5.9