Path Traversal in github.com/minio/minio (CVE-2026-42600)
Summary
Path traversal in github.com/minio/minio (CVE-2026-42600). Confidential information can be exposed externally. Exploitable via ReadMultiple.
Original description
The description as published by the source.
MinIO vulnerable to Path Traversal via msgpack Body in ReadMultiple Storage-REST Endpoint in github.com/minio/minio.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: github.com/minio/minio from v0.0.0-20220724015452 before v0.0.0-20260414213245.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-42600 has been found in github.com/minio/minio.
Attackers can target a specific entry point like ReadMultiple over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 4.9/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "github.com/minio/minio CVE-2026-42600" on the vendor's site.
CVE-2026-42600 (github.com/minio/minio) — CWE-22 / CVSS v3 4.9
Attack vector: remote (network-reachable) / no user interaction
Attack surface: ReadMultiple
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Path traversal (CWE-22) exists in github.com/minio/minio. Attackers reach the vulnerable code path via ReadMultiple.
Check the vendor advisory for the affected versions of github.com/minio/minio. Attack surface: ReadMultiple.
Severity: Medium (CVSS 4.9/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/minio/minio' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'github.com/minio/minio' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
github.com/minio/minioを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- web github.com