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Malicious Package in eslint-config-eslintGHSA-pv55-r6j3-wp94

GHSA-pv55-r6j3-wp94 is a security vulnerability in eslint-config-eslint. No vendor fix is recorded yet; mitigation options are listed below.

Published
Updated
Affected
1 pkg
Patched
None yet
Exploits
None indexed
Exploitation data as of Jul 27, 2023 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

24other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
eslint-config-eslintnpm
31Kdownloads / week

Description

Version 5.0.2 of eslint-config-eslint was published without authorization and was found to contain malicious code. This code would read the users .npmrc file and send any found authentication tokens to a remote server.

Recommendation

The best course of action if you found this package installed in your environment is to revoke all your npm tokens. You can find instructions on how to do that here. https://docs.npmjs.com/getting-started/working_with_tokens#how-to-revoke-tokens

Users may consider downgrading to version 5.0.1

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmeslint-config-eslintall versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

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

  2. Remediation status

    No patched version of eslint-config-eslint has shipped for GHSA-pv55-r6j3-wp94 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    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.

Frequently Asked Questions

Version 5.0.2 of `eslint-config-eslint` was published without authorization and was found to contain malicious code. This code would read the users `.npmrc` file and send any found authentication tokens to a remote server. ## Recommendation The best course of action if you found this package installed in your environment is to revoke all your npm tokens. You can find instructions on how to do that here. https://docs.npmjs.com/getting-started/working_with_tokens#how-to-revoke-tokens Users may consider downgrading to version 5.0.1
O3 Security · Impact-Aware SCA

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Malicious Package in eslint-config-eslint