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Not in CISA KEV
CRITICAL severity

Malicious Package in font-scrubberGHSA-65j7-66p7-9xgf

CRITICAL

GHSA-65j7-66p7-9xgf is a critical-severity (CVSS 9.8) vulnerability in font-scrubber. 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 Sep 30, 2021 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

font-scrubbernpm
3downloads / week

Description

Version 1.2.2 of font-scrubber contains malicious code as a postinstall script. The package attempts to upload sensitive files from the system to a remote server. The files include configuration files, command history logs, SSH keys and /etc/passwd.

Recommendation

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer.

The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmfont-scrubberall 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 font-scrubber, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of font-scrubber has shipped for GHSA-65j7-66p7-9xgf 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 1.2.2 of `font-scrubber` contains malicious code as a postinstall script. The package attempts to upload sensitive files from the system to a remote server. The files include configuration files, command history logs, SSH keys and /etc/passwd. ## Recommendation Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarant
O3 Security · Impact-Aware SCA

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Malicious Package in font-scrubber (Critical 9.8)