Security Deep Dive
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Security posture and CVE patch evidence from tracked releases.
No known vulnerabilities in v4.39.20.
1 CVE patched in tracked history. Median patch time: 0 days.
Versions by Severity
CVEs are attributed to tracked releases published before the patch release.
| Version | Published | C | H | M | L | KEV | Notes |
|---|---|---|---|---|---|---|---|
| v4.39.20 | 2026-05-26 | — | — | — | — | — |
Latest
|
| v4.39.19 | 2026-04-12 | — | — | — | — | — |
—
|
| v4.39.18 | 2026-04-10 | — | — | — | — | — |
—
|
| v4.39.17 | 2026-04-09 | — | — | — | — | — |
—
|
| v4.39.16 | 2026-03-14 | — | — | — | — | — |
Patches
GO-2026-4818
|
Trust Signals — 3 of 9 Present
Evidence already collected from releases and repository metadata.
Security Score
A composite score aggregating Scorecard performance, CVE patch history, OpenSSF badge tier, and dependency vulnerability exposure. Score ≥ 7.0 is healthy; < 4.0 warrants attention.
epss
0.25 / 0.5
No EPSS data
freshness
1.00 / 1.0
6d stale
scorecard
3.84 / 4.0
Score 9.6/10
cve health
2.50 / 2.5
No open CVEs
patch speed
0.50 / 0.5
0d avg
kev exposure
1.50 / 1.5
No KEV exposure
supply chain risk
0.00 / 10.0
Risk 0.0/100
Score breakdown
schema v2Vulnerability posture
vulnerability posture
10.0
25%
Release responsiveness
release responsiveness
10.0
5%
Dependency exposure
dependency exposure
10.0
10%
Provenance trust
provenance trust
9.6
40%
Maintainer health
maintainer health
10.0
10%
Operational risk
operational risk
8.5
10%
How is this calculated?
The six dimensions group the legacy score signals into weighted categories: direct vulnerability status, patch responsiveness, dependency exposure, provenance checks, maintainer activity, and exploitability risk. The flat component values above remain available for compatibility.
Scorecard
Scorecard 9.6/10OpenSSF Scorecard evaluates supply-chain security practices automatically. Score ≥ 6 is passing; ≥ 8 is excellent.
| Check | Score | Reason |
|---|---|---|
| Dependency-Update-Tool | 10 | update tool detected |
| Maintained | 10 | 30 commit(s) and 14 issue activity found in the last 90 days -- score normalized to 10 |
| Code-Review | 10 | all changesets reviewed |
| Packaging | -1 | packaging workflow not detected |
| Security-Policy | 10 | security policy file detected |
| Dangerous-Workflow | 10 | no dangerous workflow patterns detected |
| Token-Permissions | 10 | GitHub workflow tokens follow principle of least privilege |
| CII-Best-Practices | 7 | badge detected: Silver |
| Binary-Artifacts | 10 | no binaries found in the repo |
| Pinned-Dependencies | 10 | all dependencies are pinned |
| License | 10 | license file detected |
| Vulnerabilities | 6 | 4 existing vulnerabilities detected |
| Branch-Protection | 10 | branch protection is fully enabled on development and all release branches |
| Signed-Releases | 10 | 5 out of the last 5 releases have a total of 10 signed artifacts. |
| SAST | 10 | SAST tool is run on all commits |
| Fuzzing | 10 | project is fuzzed |
| CI-Tests | 10 | 30 out of 30 merged PRs checked by a CI test -- score normalized to 10 |
| Contributors | 10 | project has 8 contributing companies or organizations |
CVE Patch History
Median patch time: 0 daysTracks CVEs that were addressed in tagged releases. Shorter gap between disclosure and patch = faster response. EPSS = predicted probability of exploitation in next 30 days (FIRST.org); colored at ≥90%ile and ≥50%ile.
CVEs Patched by Year
| CVE | Severity | EPSS | Disclosed | Fixed in | Days to fix | vs Ecosystem Median | KEV |
|---|---|---|---|---|---|---|---|
| GO-2026-4818 | unknown | — | — | v4.39.16 | — | — | — |
KEV = CISA Known Exploited Vulnerabilities catalog — actively exploited in the wild.