claude-code-base-action
This report shows the evidence for claude-code-base-action@2.2.2. 2 of 2 known versions are blocked or flagged. See all versions.
OpenSSF/OSV Malicious Advisory
imported 4mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-3811 confirms this npm version as malicious.
Advisory
MAL-2026-3811
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in claude-code-base-action (npm)
Details
The package claude-code-base-action was found to contain malicious code.
## Source: ossf-package-analysis (f08c76c834d5f7c2ce735d4dd85684ec34f3dcc29e1353dc7633fb72ee79aaaf) The OpenSSF Package Analysis project identified 'claude-code-base-action' @ 2.0.0 (npm) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
References
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to claude-code-base-action@2.2.2.
The same advisory and Firewall decision cover 2 recorded versions
2.0.0, 2.2.2
The versions list below shows the verdict for each recorded version.
- Avoid installing claude-code-base-action@2.2.2. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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