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Security Deep Dive

Kubo

Security posture and CVE patch evidence from tracked releases.

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5 high-severity dependency CVEs affects v0.41.0.

Review the dependency vulnerabilities below.

— Signed — SLSA ✓ SBOM ✓ Security policy Monthly cadence · 28d median Active maintainer

Trust Signals — 4 of 9 Present

Evidence already collected from releases and repository metadata.

4/9 Present
Signed releases Unknown
Latest release artifact signature Latest release
SLSA provenance Unknown
Attestation predicate level Latest release
SBOM published Present
GitHub SBOM API Latest release
Last verified: 28d ago
SECURITY.md Present
GitHub repository metadata Repository policy
Checked: 23d ago
Release cadence: monthly Present
28d median over recent releases Release history
Latest release: 1mo ago
Maintainer active Present
Recent commit activity Repository
Last commit: 6d ago
Checksums (SHA256SUMS) Not active yet
SHA256SUMS or equivalent Release asset
Latest release: 1mo ago
GitHub Actions attestation Not active yet
actions/attest-build-provenance Workflow file
Latest release: 1mo ago
Signing assets Not active yet
.sig, .crt, cosign.pub, or similar Release asset
Latest release: 1mo ago
6.2/10 Security Score
6.1/10 Scorecard
Dependency Exposure 13 transitive dependency CVEs found in the latest SBOM.

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

2.44 / 4.0

Score 6.1/10

cve health

1.50 / 2.5

No open CVEs

patch speed

0.50 / 0.5

⚠ Estimated — no CVE patch history

kev exposure

1.50 / 1.5

No KEV exposure

supply chain risk

-1.00 / 10.0

Risk 10.0/100

Score breakdown

schema v2

Vulnerability posture

vulnerability posture

6.0

25%

direct cves: clear cve scan: available

Release responsiveness

release responsiveness

10.0

5%

patch speed days: no_history

Dependency exposure

dependency exposure

9.0

10%

supply chain risk: 10.0 transitive cves: 0c/5h

Provenance trust

provenance trust

6.1

40%

scorecard score: 6.1 openssf badge: none

Maintainer health

maintainer health

10.0

10%

activity freshness: 6d

Operational risk

operational risk

8.5

10%

kev exposure: clear epss max: none
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.

Supply Chain Risk

Risk 10.0/100
0 Transitive critical CVEs
0 KEV-transitive CVEs
100% Dependency freshness

Scorecard

Scorecard 6.1/10

OpenSSF Scorecard evaluates supply-chain security practices automatically. Score ≥ 6 is passing; ≥ 8 is excellent.

Check Score Reason
Security-Policy 10 security policy file detected
Code-Review 5 Found 12/22 approved changesets -- score normalized to 5
Maintained 10 30 commit(s) and 23 issue activity found in the last 90 days -- score normalized to 10
Dangerous-Workflow 10 no dangerous workflow patterns detected
Token-Permissions 0 detected GitHub workflow tokens with excessive permissions
CII-Best-Practices 0 no effort to earn an OpenSSF best practices badge detected
Binary-Artifacts 10 no binaries found in the repo
Fuzzing 0 project is not fuzzed
License 9 license file detected
Branch-Protection 8 branch protection is not maximal on development and all release branches
Signed-Releases 0 Project has not signed or included provenance with any releases.
Packaging 10 packaging workflow detected
Pinned-Dependencies 0 dependency not pinned by hash detected -- score normalized to 0
SAST 10 SAST tool detected

OpenSSF Badge

OpenSSF none

Badge indicates adherence to open-source best practices.

Dependency Vulnerabilities

875 dependencies scanned View full dependency list →

Scanning the SBOM (Software Bill of Materials) of the latest release for known vulnerabilities in transitive dependencies.

Critical

0

High

5

Medium

7

Low

0

Unknown

1

High 5 Medium 7 Unknown 1
CVE Severity KEV Dependency Affected version Cleared in release
CVE-2020-26279 high github.com/ipfs/go-ipfs 0.7.0
CVE-2022-23492 high github.com/libp2p/go-libp2p 0.9.6
CVE-2023-39533 high github.com/libp2p/go-libp2p 0.9.6
CVE-2023-40583 high github.com/libp2p/go-libp2p 0.9.6
CVE-2026-34986 high github.com/go-jose/go-jose/v4 v4.1.3
CVE-2020-26283 medium github.com/ipfs/go-ipfs 0.7.0
CVE-2023-22460 medium github.com/ipld/go-ipld-prime 0.0.4-0.20200503082126-7e0619f3a984
CVE-2023-23625 medium github.com/ipfs/go-unixfs 0.2.4
CVE-2026-35480 medium github.com/ipld/go-ipld-prime 0.0.4-0.20200503082126-7e0619f3a984
CVE-2026-39882 medium go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0
CVE-2026-42328 medium github.com/ipld/go-ipld-prime 0.0.4-0.20200503082126-7e0619f3a984
GHSA-f2gr-7299-487h medium github.com/ipfs/go-ipfs 0.7.0
CVE-2023-26248 unknown github.com/libp2p/go-libp2p-kad-dht v0.39.1

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