IAM
14 pages-
LDAP Long DNs: Restoring Login Without Hiding Revocation Errors
Server PR #250 (merged at d43adc0f2 and shipped in Server 20261026) fixes a login failure affecting LDAP users whose normalized Distinguished Name (DN) exceeds the 255-byte single-component filename limit of the object-storage IAM backend, while …
Server PR #250 (merged at d43adc0f2 and shipped in Server 20261026) fixes a login failure affecting LDAP users whose normalized Distinguished Name (DN) exceeds the 255-byte single-component filename limit of the object-storage IAM backend, while …
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IAM Policy Reloads: Lock Scope, Cancellation, and Time Budgets
Commit 1b5477f3d (pgsty/silo#251) resolves two coupled failure modes under slow KMS/KES responses: Authentication-cache lock contention: ListPolicies and ListPolicyDocs now load and decrypt policy replacements outside the in-memory …
Commit 1b5477f3d (pgsty/silo#251) resolves two coupled failure modes under slow KMS/KES responses: Authentication-cache lock contention: ListPolicies and ListPolicyDocs now load and decrypt policy replacements outside the in-memory …
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October Security Update: Object Lock, Admin Credentials and JWK Parsing
SILO Server 20261018 delivers the fixes for SN-2026-015, SN-2026-016, and SN-2026-017, scoped STS token revocation, and Go toolchain and dependency updates across silo, mcli, and silo-console. Server 20260916 and 20260903 are affected (and 20261015 …
SILO Server 20261018 delivers the fixes for SN-2026-015, SN-2026-016, and SN-2026-017, scoped STS token revocation, and Go toolchain and dependency updates across silo, mcli, and silo-console. Server 20260916 and 20260903 are affected (and 20261015 …
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IAM Admin API Authorization Boundaries
Server 20261018 ships Server PR #242 (commit 2616d43fb on baseline 00a375c4e, merged as 4e55fc7db) and the bulk self-listing follow-up 995439260 to close SN-2026-017. This design note records the problem scope, handler-level authorization contract, …
Server 20261018 ships Server PR #242 (commit 2616d43fb on baseline 00a375c4e, merged as 4e55fc7db) and the bulk self-listing follow-up 995439260 to close SN-2026-017. This design note records the problem scope, handler-level authorization contract, …
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Object Lock Retention Bypass and Version-Overwrite Repair Design (SN-2026-015 / SN-2026-016)
This document records the verification, Git provenance, repair design, critical-path evaluation, and candidate trade-offs for two Object Lock (WORM) security vulnerabilities identified through external reports and an internal write-path audit: …
This document records the verification, Git provenance, repair design, critical-path evaluation, and candidate trade-offs for two Object Lock (WORM) security vulnerabilities identified through external reports and an internal write-path audit: …
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SN-2026-015 & SN-2026-016: S3 Object Lock Governance Retention Bypass and Version-Addressed Overwrites
SN-2026-015 and SN-2026-016 cover two S3 Object Lock retention and immutability vulnerabilities fixed in SILO Server 20261018 via PR #234 (14042b5aa) and PR #235 (0d3ba5d4c), as detailed in the companion repair design note. While the delete path …
SN-2026-015 and SN-2026-016 cover two S3 Object Lock retention and immutability vulnerabilities fixed in SILO Server 20261018 via PR #234 (14042b5aa) and PR #235 (0d3ba5d4c), as detailed in the companion repair design note. While the delete path …
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September Security Repairs: Payload Integrity, IAM Revocation and Console Sharing
This bulletin covers three security repairs (SN-2026-012 through SN-2026-014) and adjacent dependency updates shipped in Server 20260916 and Console v2.4.1. See the security advisory ledger for the complete index. Finding Fixed source Delivery status …
This bulletin covers three security repairs (SN-2026-012 through SN-2026-014) and adjacent dependency updates shipped in Server 20260916 and Console v2.4.1. See the security advisory ledger for the complete index. Finding Fixed source Delivery status …
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SILO 20260903 Security Notes: SN-2026-006 through 010
This bulletin covers five security findings fixed in SILO Server 20260903 (RELEASE.2026-09-03T13-18-01Z), spanning customer-provided encryption keys (SSE-C), client-supplied replication headers, administrative status transitions, and explicit …
This bulletin covers five security findings fixed in SILO Server 20260903 (RELEASE.2026-09-03T13-18-01Z), spanning customer-provided encryption keys (SSE-C), client-supplied replication headers, administrative status transitions, and explicit …
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Explicit Version Deletes Now Require DeleteObjectVersion
Starting in Server 20260903 (pgsty/silo#104, tracking issue #58), SILO maps object-delete authorization to the operation the request actually performs: Request Required action No versionId s3:DeleteObject Version UUID s3:DeleteObjectVersion Explicit …
Starting in Server 20260903 (pgsty/silo#104, tracking issue #58), SILO maps object-delete authorization to the operation the request actually performs: Request Required action No versionId s3:DeleteObject Version UUID s3:DeleteObjectVersion Explicit …
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One Endpoint, Two Privileges: Separating User and Group Status
This article records the authorization design and verification for upstream issue minio/minio#21478, SILO PR #73 (commits 58735ee38 / 2e2377d1c), and the set-group-status follow-up (229fe2b3c), which shipped in Server 20260903. Too Long; Didn’t Read …
This article records the authorization design and verification for upstream issue minio/minio#21478, SILO PR #73 (commits 58735ee38 / 2e2377d1c), and the set-group-status follow-up (229fe2b3c), which shipped in Server 20260903. Too Long; Didn’t Read …
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SN-2026-018: Client Source Address Trust, Forwarded Headers, and aws:SourceIp
SN-2026-018 addresses client source-IP spoofing across aws:SourceIp IAM conditions, audit logs, bucket notification events, and admin HTTP traces in silo-pkg v3.12.0 (62f326d) and Server 20260804 (00a8171cb, pgsty/silo#41): handlers.GetSourceIP …
SN-2026-018 addresses client source-IP spoofing across aws:SourceIp IAM conditions, audit logs, bucket notification events, and admin HTTP traces in silo-pkg v3.12.0 (62f326d) and Server 20260804 (00a8171cb, pgsty/silo#41): handlers.GetSourceIP …
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SN-2026-004: Object-Scoped Policy Grants Reaching Bucket Mutations
SN-2026-004 fixes an IAM resource-matching flaw in silo-pkg v3.11.0 (3c24ad1, 1f97549, d8b1fa7) and Server 20260804 (97b7d2804; upstream reference minio/minio#20449): when evaluating bucket-level S3 requests (args.ObjectName == ""), …
SN-2026-004 fixes an IAM resource-matching flaw in silo-pkg v3.11.0 (3c24ad1, 1f97549, d8b1fa7) and Server 20260804 (97b7d2804; upstream reference minio/minio#20449): when evaluating bucket-level S3 requests (args.ObjectName == ""), …
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SN-2026-003: s3:versionid Condition Evaluation and Request Condition Hardening
SN-2026-003 and SN-2026-005 cover a set of S3 IAM policy evaluation fixes shipped in Server 20260804 (80c2c9d03, 2f55347f7, eee05a17c, and silo-pkg v3.12.0 commit 2b087a1; pgsty/silo#40, pgsty/silo#53): SN-2026-003 (80c2c9d03): getConditionValues …
SN-2026-003 and SN-2026-005 cover a set of S3 IAM policy evaluation fixes shipped in Server 20260804 (80c2c9d03, 2f55347f7, eee05a17c, and silo-pkg v3.12.0 commit 2b087a1; pgsty/silo#40, pgsty/silo#53): SN-2026-003 (80c2c9d03): getConditionValues …
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CVE-2025-62506: Session-Policy Privilege Escalation
Status: Inherited and released First SILO community release: RELEASE.2025-12-03T12-00-00Z Upstream fixed release: RELEASE.2025-10-15T17-29-55Z GitHub advisory: GHSA-jjjj-jwhf-8rgr Upstream fix: minio/minio#21642 A service account or STS account …
Status: Inherited and released First SILO community release: RELEASE.2025-12-03T12-00-00Z Upstream fixed release: RELEASE.2025-10-15T17-29-55Z GitHub advisory: GHSA-jjjj-jwhf-8rgr Upstream fix: minio/minio#21642 A service account or STS account …