{"record":{"id":"a78500d44683b7cb","repo":"slackhq/nebula","slug":"error-while-verifying-certificate-v-w","errorCode":null,"errorMessage":"error while verifying certificate %+v: %w","messagePattern":"error while verifying certificate %\\+v: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/nebula-cert/verify.go","lineNumber":81,"sourceCode":"\t\treturn fmt.Errorf(\"unable to read crt: %w\", err)\n\t}\n\tvar errs []error\n\tfor {\n\t\tif len(rawCert) == 0 {\n\t\t\tbreak\n\t\t}\n\t\tc, extra, err := cert.UnmarshalCertificateFromPEM(rawCert)\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"error while parsing crt: %w\", err)\n\t\t}\n\t\trawCert = extra\n\t\t_, err = caPool.VerifyCertificate(time.Now(), c)\n\t\tif err != nil {\n\t\t\tswitch {\n\t\t\tcase errors.Is(err, cert.ErrCaNotFound):\n\t\t\t\terrs = append(errs, fmt.Errorf(\"error while verifying certificate v%d %s with issuer %s: %w\", c.Version(), c.Name(), c.Issuer(), err))\n\t\t\tdefault:\n\t\t\t\terrs = append(errs, fmt.Errorf(\"error while verifying certificate %+v: %w\", c, err))\n\t\t\t}\n\t\t}\n\t}\n\n\treturn errors.Join(errs...)\n}\n\nfunc verifySummary() string {\n\treturn \"verify <flags>: verifies a certificate isn't expired and was signed by a trusted authority.\"\n}\n\nfunc verifyHelp(out io.Writer) {\n\tvf := newVerifyFlags()\n\t_, _ = out.Write([]byte(\"Usage of \" + os.Args[0] + \" \" + verifySummary() + \"\\n\"))\n\t_, _ = out.Write([]byte(stdioHelpText))\n\tvf.set.SetOutput(out)\n\tvf.set.PrintDefaults()\n}","sourceCodeStart":63,"sourceCodeEnd":99,"githubUrl":"https://github.com/slackhq/nebula/blob/dd8f660c0ac37903ec4080ca4d3c861ba9342ceb/cmd/nebula-cert/verify.go#L63-L99","documentation":"Catch-all diagnostic wrapper in nebula-cert verify: VerifyCertificate failed with something other than ErrCaNotFound (expired cert, bad signature, blocklisted, fingerprint mismatch, etc.). The full certificate details are rendered with %+v and the underlying error preserved via %w.","triggerScenarios":"Thrown at cmd/nebula-cert/verify.go:81 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Read the wrapped error to identify the concrete failure (expiry, signature, block list)","Renew or re-sign the certificate as appropriate","Ensure the CA pool contains the correct, valid CAs"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"dd8f660c0ac37903ec4080ca4d3c861ba9342ceb","analyzedAt":"2026-09-03T11:13:55.444Z","contentChangedAt":"2026-09-03T11:13:55.444Z","schemaVersion":2},"datasetVersion":"2026-09-10T17:17:09.494Z"}