How severe is GHSA-8hmr-w35f-3qgj?

GHSA-8hmr-w35f-3qgj has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by GHSA-8hmr-w35f-3qgj?

GHSA-8hmr-w35f-3qgj affects the following packages: harmlesspackage (npm). Ecosystems affected: npm.

How do I fix GHSA-8hmr-w35f-3qgj?

No patched version of harmlesspackage has shipped for GHSA-8hmr-w35f-3qgj yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

How do I detect GHSA-8hmr-w35f-3qgj in my npm dependencies?

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

How do I mitigate GHSA-8hmr-w35f-3qgj if there is no patch (or I can't update yet)?

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.

Is GHSA-8hmr-w35f-3qgj actively exploited in the wild?

No public exploit code has been indexed for GHSA-8hmr-w35f-3qgj yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-8hmr-w35f-3qgj published, and has it been updated?

GHSA-8hmr-w35f-3qgj was published on September 3, 2020 and was last updated on September 29, 2021. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦

📦 npm

Not in CISA KEV

CRITICAL severity

Malicious Package in harmlesspackageGHSA-8hmr-w35f-3qgj

CRITICAL

GHSA-8hmr-w35f-3qgj is a critical-severity (CVSS 9.8) vulnerability in harmlesspackage. No vendor fix is recorded yet; mitigation options are listed below.

Published

Sep 3, 2020

Updated

Sep 29, 2021

Affected

1 pkg

Patched

None yet

Exploits

None indexed

Exploitation data as of Sep 29, 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.

harmlesspackagenpm

4downloads / week

Description

Version 0.0.1 of harmlesspackage contains malicious code as a postinstall script. The package printed a message to the console and performed a GET request to a remote server.

Recommendation

Remove the package from your environment. There is no evidence of further compromise.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
📦npm	`harmlesspackage`	≥ 0.0.0	No fix

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for harmlesspackage, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
No patched version of harmlesspackage has shipped for GHSA-8hmr-w35f-3qgj yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
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 0.0.1 of `harmlesspackage` contains malicious code as a postinstall script. The package printed a message to the console and performed a GET request to a remote server. ## Recommendation Remove the package from your environment. There is no evidence of further compromise.

O3 Security · Impact-Aware SCA

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