MinIO is a high-performance, S3 compatible object store, open sourced under GNU AGPLv3 license.
This report summarizes scanner evidence for minio/minio, a Go project with 61,293 GitHub stars. SynthScan examined 391,826 lines of code across 1130 source files, recording 1023 pattern matches distributed across 13 syntactic categories. The legacy adjusted pattern signal is 2.8 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.
Can maintainers explain intent, assumptions, and trade-offs? 1020 finding(s).
Are imports declared and package/API names verified? 3 finding(s).
Are wrappers, guards, and repeated structures necessary? 1 finding(s).
Which changes need focused human review? 1023 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 1023 distinct pattern matches across 13 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | main.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/warm-backend.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/background-newdisks-heal-ops.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/xl-storage-errors.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/streaming-signature-v4.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/streaming-signature-v4.go | 241 | func (cr *s3ChunkedReader) Close() (err error) { | COMMENT |
| LOW | cmd/batch-expire_test.go | 1 | // Copyright (c) 2015-2023 MinIO, Inc. | COMMENT |
| LOW | cmd/bucket-policy.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/bucket-lifecycle.go | 1 | // Copyright (c) 2015-2024 MinIO, Inc. | COMMENT |
| LOW | cmd/erasure-metadata.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/admin-heal-ops.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/admin-heal-ops.go | 601 | func (h *healSequence) stop() { | COMMENT |
| LOW | cmd/admin-heal-ops.go | 821 | // according to settings. At each "safe" point it also checks if an | COMMENT |
| LOW | cmd/xl-storage-meta-inline.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/bucket-replication_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/namespace-lock_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/endpoint-ellipses_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/signature-v4.go | 1 | // Copyright (c) 2015-2023 MinIO, Inc. | COMMENT |
| LOW | cmd/signature-v4.go | 161 | } | COMMENT |
| LOW | cmd/metacache-entries_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/bucket-quota.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/data-scanner.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/data-scanner.go | 261 | COMMENT | |
| LOW | cmd/data-scanner.go | 281 | // When selected there is a one in healObjectSelectProb that any object will be chosen for heal scan. | COMMENT |
| LOW | cmd/iam.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/iam.go | 741 | if nerr.Err != nil { | COMMENT |
| LOW | cmd/iam.go | 761 | // where the parent user is the DN of the actual LDAP user. The parent user | COMMENT |
| LOW | cmd/iam.go | 1441 | COMMENT | |
| LOW | cmd/iam.go | 2401 | // includes `null`, `{}` and `{"Statement": null}`. In fact, MinIO Console | COMMENT |
| LOW | cmd/iam.go | 2461 | // must be restricted by it. So, we set `.IsOwner` to false here | COMMENT |
| LOW | cmd/metacache-stream.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/metacache-stream.go | 41 | // | COMMENT |
| LOW | cmd/config.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/site-replication-metrics.go | 1 | // Copyright (c) 2015-2023 MinIO, Inc. | COMMENT |
| LOW | cmd/http-stats.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/metacache-server-pool.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/rebalance-admin.go | 1 | // Copyright (c) 2022 MinIO, Inc. | COMMENT |
| LOW | cmd/erasure-metadata-utils.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/utils_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/os-dirent_ino.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/object-api-multipart_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/object-api-multipart_test.go | 241 | { | COMMENT |
| LOW | cmd/object-api-multipart_test.go | 261 | // But the uploadID is invalid. | COMMENT |
| LOW | cmd/object-api-multipart_test.go | 461 | }, | COMMENT |
| LOW | cmd/object-api-multipart_test.go | 1101 | // {bucketNames[0], "", "min", "", "", -1, listMultipartResults[7], nil, true}, | COMMENT |
| LOW | cmd/object-api-multipart_test.go | 1121 | {bucketNames[1], "", "minio-object-1.txt", uploadIDs[1], "", 100, listMultipartResults[16], nil, true}, | COMMENT |
| LOW | cmd/object-api-multipart_test.go | 1141 | // Objects used: `objectNames[1-5]`. | COMMENT |
| LOW | cmd/metrics-v3-bucket-replication.go | 1 | // Copyright (c) 2015-2024 MinIO, Inc. | COMMENT |
| LOW | cmd/config-migrate.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/object-handlers-common_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/postpolicyform.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/xl-storage_windows_test.go | 1 | //go:build windows | COMMENT |
| LOW | cmd/metrics-v3-ilm.go | 1 | // Copyright (c) 2024 MinIO, Inc. | COMMENT |
| LOW | cmd/erasure-sets_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/bucket-object-lock.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/bucket-object-lock.go | 121 | return ObjectLocked{} | COMMENT |
| LOW | cmd/object-api-listobjects_test.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/lock-rest-server.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/admin-router.go | 1 | // Copyright (c) 2015-2021 MinIO, Inc. | COMMENT |
| LOW | cmd/admin-router.go | 61 | ) | COMMENT |
| 886 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | cmd/erasure-object_test.go | 1225 | // Step 1: create a bucket | COMMENT |
| LOW⚡ | cmd/erasure-object_test.go | 1231 | // Step 2: Upload an object with a random content | COMMENT |
| LOW | cmd/erasure-object_test.go | 1242 | // Step 3: Upload the object with some disks offline | COMMENT |
| LOW | cmd/erasure-object_test.go | 1258 | // Step 4: Try to read the object back and check its md5sum | COMMENT |
| LOW | docs/bucket/notifications/README.md | 73 | ### Step 1: Add AMQP endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 143 | ### Step 2: Enable RabbitMQ bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 154 | ### Step 3: Test on RabbitMQ | COMMENT |
| LOW | docs/bucket/notifications/README.md | 210 | ### Step 1: Add MQTT endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 270 | ### Step 2: Enable MQTT bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 281 | ### Step 3: Test on MQTT | COMMENT |
| LOW | docs/bucket/notifications/README.md | 341 | ### Step 1: Ensure Elasticsearch minimum requirements are met | COMMENT |
| LOW | docs/bucket/notifications/README.md | 345 | ### Step 2: Add Elasticsearch endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 403 | ### Step 3: Enable Elastichsearch bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 418 | ### Step 4: Test on Elasticsearch | COMMENT |
| LOW | docs/bucket/notifications/README.md | 512 | ### Step 1: Add Redis endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 563 | ### Step 2: Enable Redis bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 578 | ### Step 3: Test on Redis | COMMENT |
| LOW | docs/bucket/notifications/README.md | 611 | ### Step 1: Add NATS endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 685 | ### Step 2: Enable NATS bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 696 | ### Step 3: Test on NATS | COMMENT |
| LOW | docs/bucket/notifications/README.md | 860 | ### Step 1: Ensure postgresql minimum requirements are met | COMMENT |
| LOW | docs/bucket/notifications/README.md | 864 | ### Step 2: Add PostgreSQL endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 920 | ### Step 3: Enable PostgreSQL bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 939 | ### Step 4: Test on PostgreSQL | COMMENT |
| LOW | docs/bucket/notifications/README.md | 993 | ### Step 1: Ensure MySQL minimum requirements are met | COMMENT |
| LOW | docs/bucket/notifications/README.md | 997 | ### Step 2: Add MySQL server endpoint configuration to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1056 | ### Step 3: Enable MySQL bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1074 | ### Step 4: Test on MySQL | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1100 | ### Step 1: Ensure minimum requirements are met | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1104 | ### Step 2: Add Kafka endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1170 | ### Step 3: Enable Kafka bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1181 | ### Step 4: Test on Kafka | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1258 | ### Step 1: Add Webhook endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1304 | ### Step 2: Enable Webhook bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1326 | ### Step 3: Test with Thumbnailer | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1364 | ### Step 1: Add NSQ endpoint to MinIO | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1414 | ### Step 2: Enable NSQ bucket notification using MinIO client | COMMENT |
| LOW | docs/bucket/notifications/README.md | 1425 | ### Step 3: Test on NSQ | COMMENT |
| LOW⚡ | docs/tuning/README.md | 12 | #### Step 1 - download `tuned.conf` from the referenced link | COMMENT |
| LOW⚡ | docs/tuning/README.md | 17 | #### Step 2 - install tuned.conf as supported performance profile on all nodes | COMMENT |
| LOW⚡ | docs/tuning/README.md | 23 | #### Step 3 - to enable minio performance profile on all the nodes | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | cmd/metrics-v3-ilm.go | 3 | // # This file is part of MinIO Object Storage stack | COMMENT |
| MEDIUM | cmd/metrics-v3-system-cpu.go | 3 | // # This file is part of MinIO Object Storage stack | COMMENT |
| MEDIUM | cmd/metrics-v3-system-memory.go | 3 | // # This file is part of MinIO Object Storage stack | COMMENT |
| MEDIUM | cmd/metrics-v3-system-process.go | 3 | // # This file is part of MinIO Object Storage stack | COMMENT |
| MEDIUM | cmd/metrics-v3-cluster-notification.go | 3 | // # This file is part of MinIO Object Storage stack | COMMENT |
| MEDIUM | internal/kms/config_test.go | 3 | // # This file is part of MinIO Object Storage stack | COMMENT |
| MEDIUM | internal/config/browser/help.go | 3 | // # This file is part of MinIO Object Storage stack | COMMENT |
| MEDIUM | docs/bucket/replication/setup_replication.sh | 7 | #### Create a replication admin on source alias | COMMENT |
| MEDIUM | docs/bucket/replication/setup_replication.sh | 48 | # Create a replication user : repluser on dest alias | COMMENT |
| MEDIUM | helm/minio/values.yaml | 130 | ## Create a secret with private.key and public.crt files and pass that here. Ref: https://github.com/minio/minio/tree/ | COMMENT |
| MEDIUM | helm/minio/values.yaml | 529 | ## The following section documents environment variables for enabling external identity management using an OpenID Conne | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | cmd/data-scanner.go | 431 | if !f.oldCache.Info.replication.Empty() && f.oldCache.Info.replication.Config.HasActiveRules(prefix, true) { | CODE |
| CRITICAL | internal/s3select/sql/statement.go | 73 | if selectAST.Expression.Expressions[0].Expression.And[0].Condition[0].Operand.Operand.Left.Left.Primary.JPathExpr.Stri | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | cmd/bucket-lifecycle.go | 837 | // Essentially the same as S3Select barring the xml name. | COMMENT |
| MEDIUM | cmd/server_test.go | 1055 | // Run the test with -race flag to utilize this | COMMENT |
| MEDIUM | cmd/veeam-sos-api.go | 81 | // - The object should be present in all buckets accessed by Veeam products that want to leverage the SOSAPI functionali | COMMENT |
| MEDIUM | helm/minio/values.yaml | 518 | ## Please refer for comprehensive list https://docs.min.io/community/minio-object-store/reference/minio-server/minio-s | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | cmd/erasure-object_test.go | 1225 | // Step 1: create a bucket | COMMENT |
| LOW⚡ | cmd/erasure-object_test.go | 1231 | // Step 2: Upload an object with a random content | COMMENT |
| LOW | cmd/erasure-object_test.go | 1242 | // Step 3: Upload the object with some disks offline | COMMENT |
| LOW | cmd/erasure-object_test.go | 1258 | // Step 4: Try to read the object back and check its md5sum | COMMENT |
| LOW | cmd/admin-handlers-idp-config.go | 172 | // target, we need to check if a configuration value has been set previously | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | internal/arn/arn.go | 31 | // In this implementation, account-id is empty. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/distributed/iam-import-with-openid.sh | 51 | # Verify if buckets / objects accessible using service account | COMMENT |
| LOW | docs/resiliency/resiliency-verify-script.sh | 41 | # Check if check sums match for source and destination directories | COMMENT |
| LOW | docs/bucket/replication/setup_ilm_expiry_replication.sh | 112 | ## Check if ILM expiry rules replicated | COMMENT |
| LOW | docs/bucket/replication/setup_ilm_expiry_replication.sh | 204 | ## Check if latest updated rules get replicated to all sites post re-enable of ILM expiry rules replication | COMMENT |
| LOW | buildscripts/verify-healing-empty-erasure-set.sh | 57 | # Check if we should retry | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docker-buildx.sh | 6 | ## All binaries are static make sure to disable CGO. | COMMENT |
| LOW | buildscripts/cross-compile.sh | 8 | ## All binaries are static make sure to disable CGO. | COMMENT |
| LOW | helm/minio/values.yaml | 374 | ## make sure to disable this if you are using LDAP. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | internal/s3select/sql/analysis.go | 341 | // TODO: implement other functions | COMMENT |
| LOW | internal/s3select/sql/funceval.go | 141 | // TODO: implement | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | cmd/test-utils_test.go | 310 | // Example usage: | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/sts/dex.yaml | 74 | - email: "admin@example.com" | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/sts/client_grants/__init__.py | 63 | def _create_credentials_fetcher(self): | CODE |