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Issue title

Go Recover Without Log

Curate findings to include

Pick exactly which findings appear in the issue body. By default the top 5 are included. Uncheck noise, check what matters.

Top 5 (default)
Severity Rule Title File:line
HIGH SEC029 [SEC029] Server-Side Request Forgery (SSRF) — outbound HTTP from user input: Outbound HTT… cmds/core/netcat/connect.go:255
HIGH SEC113 [SEC113] SSH host-key verification disabled (MITM): Accepting any SSH host key on first c… cmds/core/mount9p/mount9p.go:41
HIGH MINED004 [MINED004] Weak Crypto: MD5/SHA1/DES/RC4 used for security context (not just checksums). cmds/core/shasum/shasum.go:23
HIGH MINED004 [MINED004] Weak Crypto: MD5/SHA1/DES/RC4 used for security context (not just checksums). cmds/core/md5sum/md5sum.go:9
HIGH MINED033 [MINED033] Go Recover Without Log: defer func() { recover() }() that silently swallows pa… cmds/core/ip/ip_linux.go:246
HIGH MINED016 [MINED016] Go Error Ignored: _, err := fn() with err not checked. Go anti-pattern. cmds/core/echo/echo.go:77
HIGH MINED016 [MINED016] Go Error Ignored: _, err := fn() with err not checked. Go anti-pattern. cmds/core/dmesg/dmesg_linux.go:53
HIGH MINED016 [MINED016] Go Error Ignored: _, err := fn() with err not checked. Go anti-pattern. cmds/core/basename/basename.go:31
HIGH SEC093 [SEC093] Go: exec.Command with non-literal: exec.Command(<var>) — variable command name a… cmds/core/service/service.go:105
HIGH SEC093 [SEC093] Go: exec.Command with non-literal: exec.Command(<var>) — variable command name a… cmds/core/nohup/nohup.go:51
HIGH SEC093 [SEC093] Go: exec.Command with non-literal: exec.Command(<var>) — variable command name a… cmds/core/backoff/backoff.go:58
HIGH MINED126 [MINED126] Workflow container/services image `ghcr.io/tinygo-org/tinygo-dev:sha-3869f7688… .github/workflows/tinygo.yml:17
HIGH MINED115 [MINED115] Action `peaceiris/actions-gh-pages` pinned to mutable ref `@v4`: `uses: peacei… .github/workflows/homepage.yml:20
HIGH MINED115 [MINED115] Action `actions/setup-node` pinned to mutable ref `@v4`: `uses: actions/setup-… .github/workflows/homepage.yml:13
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/homepage.yml:12
HIGH MINED115 [MINED115] Action `codecov/codecov-action` pinned to mutable ref `@v4`: `uses: codecov/co… .github/workflows/tests.yml:69
HIGH MINED115 [MINED115] Action `actions/setup-go` pinned to mutable ref `@v5`: `uses: actions/setup-go… .github/workflows/tests.yml:51
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/tests.yml:49
HIGH MINED115 [MINED115] Action `actions/upload-artifact` pinned to mutable ref `@v4`: `uses: actions/u… .github/workflows/cifuzz.yml:23
HIGH MINED115 [MINED115] Action `google/oss-fuzz/infra/cifuzz/actions/run_fuzzers` pinned to mutable re… .github/workflows/cifuzz.yml:15
HIGH MINED115 [MINED115] Action `google/oss-fuzz/infra/cifuzz/actions/build_fuzzers` pinned to mutable … .github/workflows/cifuzz.yml:9
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/test-images.yml:52
HIGH MINED115 [MINED115] Action `actions/setup-go` pinned to mutable ref `@v3`: `uses: actions/setup-go… .github/workflows/go.yml:90
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v3`: `uses: actions/checkout… .github/workflows/go.yml:87
HIGH MINED115 [MINED115] Action `actions/setup-go` pinned to mutable ref `@v5`: `uses: actions/setup-go… .github/workflows/go.yml:62
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/go.yml:59
HIGH MINED115 [MINED115] Action `actions/setup-go` pinned to mutable ref `@v5`: `uses: actions/setup-go… .github/workflows/go.yml:42
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/go.yml:39
HIGH MINED115 [MINED115] Action `actions/setup-go` pinned to mutable ref `@v5`: `uses: actions/setup-go… .github/workflows/go.yml:17
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/go.yml:15
HIGH MINED115 [MINED115] Action `github/codeql-action/analyze` pinned to mutable ref `@v3`: `uses: gith… .github/workflows/codeql-analysis.yml:59
HIGH MINED115 [MINED115] Action `github/codeql-action/autobuild` pinned to mutable ref `@v3`: `uses: gi… .github/workflows/codeql-analysis.yml:46
HIGH MINED115 [MINED115] Action `github/codeql-action/init` pinned to mutable ref `@v3`: `uses: github/… .github/workflows/codeql-analysis.yml:32
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/codeql-analysis.yml:28
HIGH MINED115 [MINED115] Action `golangci/golangci-lint-action` pinned to mutable ref `@v7`: `uses: gol… .github/workflows/golangci-lint.yml:25
HIGH MINED115 [MINED115] Action `actions/setup-go` pinned to mutable ref `@v5`: `uses: actions/setup-go… .github/workflows/golangci-lint.yml:20
HIGH MINED115 [MINED115] Action `actions/checkout` pinned to mutable ref `@v4`: `uses: actions/checkout… .github/workflows/golangci-lint.yml:19
MED CFG006 [CFG006] Missing .gitignore: No .gitignore file. Risk of committing secrets and build art…
MED SEC045 [SEC045] eval()/exec() on stored or user-supplied data: eval() and exec() on data — even … cmds/core/kexec/kexec_linux.go:184
MED SEC045 [SEC045] eval()/exec() on stored or user-supplied data: eval() and exec() on data — even … cmds/core/init/init_linux.go:59
MED SEC112 [SEC112] Go html/template bypass — text/template used for HTML output, or template.HTML o… cmds/core/head/head.go:74
MED SEC112 [SEC112] Go html/template bypass — text/template used for HTML output, or template.HTML o… cmds/core/dirname/dirname.go:27
MED SEC112 [SEC112] Go html/template bypass — text/template used for HTML output, or template.HTML o… cmds/core/cpio/cpio.go:162
LOW ERR003 [ERR003] Ignored Error (Go): Ignoring error return values. cmds/core/id/id.go:114
LOW ERR003 [ERR003] Ignored Error (Go): Ignoring error return values. cmds/core/cat/cat.go:28
LOW ERR003 [ERR003] Ignored Error (Go): Ignoring error return values. cmds/core/base64/base64.go:81
LOW AIC003 Duplicated implementation block across source files cmds/core/unmount/unmount.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/timeout/sig_freebsd.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/mknod/mknod_linux.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/ls/ls_windows.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/kill/list_openbsd.go:95
LOW AIC003 Duplicated implementation block across source files cmds/core/kill/list_openbsd.go:28
LOW AIC003 Duplicated implementation block across source files cmds/core/kill/list_openbsd.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/kill/list_netbsd.go:94
LOW AIC003 Duplicated implementation block across source files cmds/core/kill/list_netbsd.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/kill/list_linux.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/kill/list_freebsd.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/init/init_plan9.go:1
LOW AIC003 Duplicated implementation block across source files cmds/core/gosh/completer_liner.go:78
INFO MINED071 [MINED071] Go Panic Call: panic() crashes the process. Should return error in most cases. cmds/core/strings/strings.go:98
INFO MINED071 [MINED071] Go Panic Call: panic() crashes the process. Should return error in most cases. cmds/core/io/io.go:86
INFO MINED060 [MINED060] Go Context No Cancel: context.Background() at request handler boundary leaks g… cmds/core/find/find.go:156
INFO MINED060 [MINED060] Go Context No Cancel: context.Background() at request handler boundary leaks g… cmds/core/dhclient/dhclient.go:88
INFO MINED060 [MINED060] Go Context No Cancel: context.Background() at request handler boundary leaks g… cmds/boot/pxeboot/pxeboot_linux.go:76
Reset to top 5 64 findings available (after auto-suppression of test files + won't-fix)

Issue body (markdown)

## Code-quality scan: `u-root/u-root`

**Score: 75/100 (A-)**  ·  67 findings  ·  scanned 2026-06-05 17:20 UTC  ·  50,647 LOC

| Severity | Count |
|---|---|
| CRITICAL | 0 |
| HIGH | 37 |
| MEDIUM | 6 |
| LOW | 16 |

📊 [Full filterable report](https://repobility.com/scan/2fcec4ea-77dc-4b3f-ba33-9dc1ecd00739/)  ·  ![scorecard](https://repobility.com/scan/2fcec4ea-77dc-4b3f-ba33-9dc1ecd00739/report.png?v=1780680009-s2)

### Top findings

1. **HIGH** `SEC029` — Server-Side Request Forgery (SSRF) — outbound HTTP from user input
   `cmds/core/netcat/connect.go:255` · A10:2021 SSRF
2. **HIGH** `SEC113` — SSH host-key verification disabled (MITM)
   `cmds/core/mount9p/mount9p.go:41` · A02:2021 Cryptographic Failures
3. **HIGH** `MINED004` — Weak Crypto
   `cmds/core/shasum/shasum.go:23` · CWE-327 · ✓ Repobility
4. **HIGH** `MINED004` — Weak Crypto
   `cmds/core/md5sum/md5sum.go:9` · CWE-327 · ✓ Repobility
5. **HIGH** `MINED033` — Go Recover Without Log
   `cmds/core/ip/ip_linux.go:246` · CWE-755 · ✓ Repobility

---

**Security note**: this issue is public. If any flagged finding is a real, exploitable vulnerability, please redirect to your `SECURITY.md` policy or open a [private security advisory](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability) instead. We're happy to close this and re-submit privately.

---

_Filed automatically. Close this issue if not useful — we won't refile. Full report: https://repobility.com/scan/2fcec4ea-77dc-4b3f-ba33-9dc1ecd00739/_
Already filed
This repo publishes a SECURITY.md policy and the scan contains 5 Critical/High security finding(s). Public issue filing would violate coordinated disclosure. Submit privately via the project's security reporting channel.
Megaproject â high spam risk
Could not determine 'u-root/u-root' star count (GitHub API rate-limited or unreachable). When in doubt about repo size, prefer opening a focused PR or a discussion rather than an issue.
Already filed
29/72 findings (40%) on this scan are already flagged as test-file, won't-fix, or suppressed. The scan is too noisy to file as a single issue. Curate down to specific actionable findings, or address the FP source first.

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