google/log4jscanner
A log4j vulnerability filesystem scanner and Go package for analyzing JAR files. observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 0
- Release rhythm 8
- Longevity 100
Flags: archived
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 1709
- days_rel: n/a
- days_push: 1525
- n_releases_24m: 0
Adoption not part of the score
1562 stars · 113 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A Go-based filesystem scanner and library that detects JAR files containing the vulnerable Log4j classes behind the Log4Shell vulnerability (CVE-2021-44228). It can optionally rewrite JARs in place to remove the vulnerable JndiLookup class.
Use cases
- scan a filesystem for log4j vulnerable jars
- find servers affected by log4shell
- remove JndiLookup class from vulnerable jars
- analyze jar files for log4j vulnerability in Go
- audit dependencies for CVE-2021-44228
- scan entire root filesystem for log4j
When to choose
- you need to quickly identify or remediate Log4Shell exposure across a filesystem
- you want a Go library to programmatically inspect JARs for the vulnerable log4j classes
When to avoid
- you need general-purpose Java dependency or SBOM scanning beyond log4j
- the vulnerability has been patched at source and you no longer need ad-hoc scanning
Facets
cli-tool · maturity maintenance
security vulnerability-scanning parser cli developer-tools security developer-tools files windows cross-platform go cli log4j log4shell jar-analysis cve-2021-44228 filesystem-scanner java command-line linux macos
1 source
- readme: https://github.com/google/log4jscanner · fetched 2026-08-28 · 4272d408cb12
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| google/log4jscanner | main | 10 |
For agents
markdown · JSON · MCP: product_card(name="google/log4jscanner")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem