Improper Authentication The advisory has been revoked - it doesn't affect any version of package github.com/minio/minio/cmd (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMMINIOMINIOCMD-16119143
- published22 Apr 2026
- disclosed22 Apr 2026
- creditArvin Shivram
Introduced: 22 Apr 2026
CVE-2026-41145 (opens in a new tab)Amendment
This was deemed not a vulnerability.
Overview
github.com/minio/minio/cmd is an open source object storage server compatible with Amazon S3 APIs.
Affected versions of this package are vulnerable to Improper Authentication via the PutObjectHandler and PutObjectPartHandler functions. An attacker can gain unauthorized write access to arbitrary objects in any bucket by supplying only a valid access key through the query string and omitting the Authorization header, thereby bypassing signature verification. This allows the attacker to impersonate any user with WRITE permissions and upload objects without possessing the secret key or a valid cryptographic signature.
Workaround
This vulnerability can be mitigated by blocking unsigned-trailer requests at the load balancer, rejecting any request containing X-Amz-Content-Sha256: STREAMING-UNSIGNED-PAYLOAD-TRAILER at the reverse proxy or WAF layer, using the signed variant for clients, or restricting WRITE permissions to trusted principals.
This advisory is a duplicate of SNYK-GOLANG-GITHUBCOMMINIOMINIOCMD-16068895