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Security Deep Dive

shellhub

Security posture and CVE patch evidence from tracked releases.

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1 actively-exploited dependency CVE affects v0.26.0.

KEV-listed CVEs are confirmed exploited in the wild — patch urgently.

Versions by Severity

CVEs are attributed to tracked releases published before the patch release.

12 versions tracked

Version	Published	C	H	M	L	KEV	Notes
v0.26.0	2026-07-06	—	—	—	—	—	Latest
v0.25.1	2026-06-10	—	—	—	—	—	—
v0.25.0	2026-06-06	—	—	—	—	—	Patches CVE-2023-44487
v0.24.2	2026-04-29	—	1	—	—	KEV 1	—
v0.21.7	2026-04-23	—	1	—	—	KEV 1	—
v0.21.6	2026-04-23	—	1	—	—	KEV 1	—
v0.24.1	2026-04-08	—	1	—	—	KEV 1	—
v0.24.0	2026-04-01	—	1	—	—	KEV 1	—
v0.23.0	2026-04-01	—	1	—	—	KEV 1	—
v0.22.0	2026-03-10	—	1	—	—	KEV 1	—
v0.21.5	2026-01-07	—	1	—	—	KEV 1	—
v0.21.4	2026-01-02	—	1	—	—	KEV 1	—

— Signed — SLSA — SBOM ✓ Security policy Weekly cadence · 6d median Active maintainer

Trust Signals — 3 of 9 Present

Evidence already collected from releases and repository metadata.

3/9 Present

Signed releases Unknown

Latest release artifact signature Latest release

—

SLSA provenance Unknown

Attestation predicate level Latest release

—

SBOM published Unknown

GitHub SBOM API Latest release

—

SECURITY.md Present

GitHub repository metadata Repository policy

Checked: 14d ago

Release cadence: weekly Present

6d median over recent releases Release history

Latest release: 20d ago

Maintainer active Present

Recent commit activity Repository

Last commit: 8d ago

Checksums (SHA256SUMS) Not active yet

SHA256SUMS or equivalent Release asset

Latest release: 20d ago

GitHub Actions attestation Not active yet

actions/attest-build-provenance Workflow file

Latest release: 20d ago

Signing assets Not active yet

.sig, .crt, cosign.pub, or similar Release asset

Latest release: 20d ago

0.8/10 Security Score

5.7/10 Scorecard

Dependency Exposure 32 transitive dependency CVEs found in the latest SBOM. 1 critical.

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

0.00 / 0.5

Max EPSS 1.000

freshness

1.00 / 1.0

1d stale

scorecard

2.28 / 4.0

Score 5.7/10

cve health

0.00 / 2.5

⚠ No direct scan — 3c/32h transitive CVEs

patch speed

0.50 / 0.5

⚠ Estimated — no CVE patch history

kev exposure

-1.50 / 1.5

KEV exposure detected

supply chain risk

-1.50 / 10.0

Risk 91.6/100

Score breakdown

schema v2

Vulnerability posture

vulnerability posture

0.0

25%

direct cves: clear cve scan: estimated

Release responsiveness

release responsiveness

10.0

patch speed days: no_history

Dependency exposure

dependency exposure

0.8

10%

supply chain risk: 91.59 transitive cves: 3c/32h

Provenance trust

provenance trust

5.7

40%

scorecard score: 5.7 openssf badge: none

Maintainer health

maintainer health

10.0

10%

activity freshness: 1d

Operational risk

operational risk

0.0

10%

kev exposure: detected epss max: 1.0

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 91.6/100

1 Transitive critical CVEs

1 KEV-transitive CVEs

70% Dependency freshness

Scorecard

Scorecard 5.7/10

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

Check	Score	Reason
Maintained	10	30 commit(s) and 28 issue activity found in the last 90 days -- score normalized to 10
Code-Review	6	Found 5/8 approved changesets -- score normalized to 6
Security-Policy	10	security policy file detected
Dangerous-Workflow	10	no dangerous workflow patterns detected
CII-Best-Practices	0	no effort to earn an OpenSSF best practices badge detected
Token-Permissions	0	detected GitHub workflow tokens with excessive permissions
Binary-Artifacts	10	no binaries found in the repo
License	10	license file detected
Fuzzing	10	project is fuzzed
Branch-Protection	1	branch protection is not maximal on development and all release branches
Signed-Releases	0	Project has not signed or included provenance with any releases.
SAST	0	SAST tool is not run on all commits -- score normalized to 0
Packaging	10	packaging workflow detected
Pinned-Dependencies	1	dependency not pinned by hash detected -- score normalized to 1

OpenSSF Badge

OpenSSF none

Badge indicates adherence to open-source best practices.

CVE Patch History

Tracks 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

Critical High Medium Low

2026

CVE	Severity	EPSS	Disclosed	Fixed in	Days to fix	vs Ecosystem Median	KEV
CVE-2023-44487	HIGH	99%ile	—	v0.25.0	—	—	KEV

KEV = CISA Known Exploited Vulnerabilities catalog — actively exploited in the wild.

Dependency Vulnerabilities

2373 dependencies scanned View full dependency list →

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

Critical

High

Medium

Low

Unknown

1 dependency vulnerabilities are in KEV.

CISA confirmed these vulnerabilities are actively exploited. Treat as critical priority.

Still affecting latest (32) All (106)

Critical 1 High 8 Medium 17 Unknown 6

CVE	Severity	KEV	Dependency	Affected version	Cleared in release
CVE-2024-45337	critical	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2021-23409	high	—	github.com/pires/go-proxyproto	0.6.0	v0.25.0
CVE-2021-33194	high	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2021-43565	high	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2022-27191	high	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2022-27664	high	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2022-41723	high	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2023-39325	high	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2025-22869	high	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2021-31525	medium	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2022-29526	medium	—	golang.org/x/sys	0.0.0-20210616094352-59db8d763f22	v0.25.0
CVE-2022-41717	medium	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2023-3978	medium	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2023-44487	medium	KEV	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.1
CVE-2023-45288	medium	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2023-48795	medium	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2025-22870	medium	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2025-22872	medium	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2025-47914	medium	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2025-58058	medium	—	github.com/ulikunitz/xz	v0.5.14	v0.25.0
CVE-2025-58181	medium	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2026-44423	medium	—	github.com/shellhub-io/shellhub	0.7.1	v0.25.0
CVE-2026-44424	medium	—	github.com/shellhub-io/shellhub	0.7.1	v0.25.0
CVE-2026-44425	medium	—	github.com/shellhub-io/shellhub	0.7.1	v0.25.0
CVE-2026-44426	medium	—	github.com/shellhub-io/shellhub	0.7.1	v0.25.0
GHSA-67mh-4wv8-2f99	medium	—	esbuild	0.21.5	v0.25.0
CVE-2021-44716	unknown	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2022-30636	unknown	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2024-45338	unknown	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2025-47911	unknown	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0
CVE-2025-47913	unknown	—	golang.org/x/crypto	0.0.0-20210616213533-5ff15b29337e	v0.25.0
CVE-2025-58190	unknown	—	golang.org/x/net	0.0.0-20210226172049-e18ecbb05110	v0.25.0

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