Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 contains a signature verification flaw in its built-in S3 server that allows presigned URL holders to inject unsigned x-amz-* headers. Attackers can add an unsigned X-Amz-Copy-Source header to a presigned upload URL to copy other bucket objects onto the granted key, disclosing their contents and ETags.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 23 Oct 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 contains a signature verification flaw in its built-in S3 server that allows presigned URL holders to inject unsigned x-amz-* headers. Attackers can add an unsigned X-Amz-Copy-Source header to a presigned upload URL to copy other bucket objects onto the granted key, disclosing their contents and ETags. | |
| Title | Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 Unsigned Header Bypass in Presigned S3 Upload URLs | |
| First Time appeared |
Linuxcontainers
Linuxcontainers incus |
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| Weaknesses | CWE-347 | |
| CPEs | cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linuxcontainers
Linuxcontainers incus |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-22T19:13:43.999Z
Reserved: 2026-10-22T11:24:28.627Z
Link: CVE-2026-115374
No data.
Status : Received
Published: 2026-10-22T19:17:43.953
Modified: 2026-10-22T19:17:43.953
Link: CVE-2026-115374
No data.
OpenCVE Enrichment
Updated: 2026-10-23T07:15:17Z
Weaknesses