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.
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 |
|
| 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