How severe is GHSA-mgff-xpg3-3gwc?

GHSA-mgff-xpg3-3gwc has a CVSS score of 9.1/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by GHSA-mgff-xpg3-3gwc?

GHSA-mgff-xpg3-3gwc affects the following packages: bsae-x (npm). Ecosystems affected: npm.

How do I fix GHSA-mgff-xpg3-3gwc?

No patched version of bsae-x has shipped for GHSA-mgff-xpg3-3gwc 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-mgff-xpg3-3gwc in my npm dependencies?

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

How do I mitigate GHSA-mgff-xpg3-3gwc 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-mgff-xpg3-3gwc actively exploited in the wild?

No public exploit code has been indexed for GHSA-mgff-xpg3-3gwc 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-mgff-xpg3-3gwc published, and has it been updated?

GHSA-mgff-xpg3-3gwc was published on September 3, 2020 and was last updated on October 1, 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 bsae-xGHSA-mgff-xpg3-3gwc

CRITICAL

GHSA-mgff-xpg3-3gwc is a critical-severity (CVSS 9.1) vulnerability in bsae-x. No vendor fix is recorded yet; mitigation options are listed below.

Published

Sep 3, 2020

Updated

Oct 1, 2021

Affected

1 pkg

Patched

None yet

Exploits

None indexed

Exploitation data as of Oct 1, 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.

bsae-xnpm

3downloads / week

Description

All versions of this package contained malware. The package was designed to find and exfiltrate cryptocurrency wallets.

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

Ecosystem	Package	Vulnerable range	Fix
📦npm	`bsae-x`	≥ 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 bsae-x, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
No patched version of bsae-x has shipped for GHSA-mgff-xpg3-3gwc 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

All versions of this package contained malware. The package was designed to find and exfiltrate cryptocurrency wallets. ## 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.

O3 Security · Impact-Aware SCA

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