Skip to content
CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-115374

Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 Unsigned Header Bypass in Presigned S3 Upload URLs

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
VulnCheck

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

lxc incus

Default version status: unaffected

  • 7.0.0 to < 7.0.2affected
  • 7.0.2unaffected
  • 7.1.0 to < 7.5.0affected
  • 7.5.0unaffected
pkg:golang/github.com/lxc/incus/v7/cmd/incusd

References