CVE-2026-115374

7.1 HIGHpublic exploit available

Published 2026-10-22 · Updated 2026-10-23

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Weaknesses

CWE-347

Public exploit & PoC references

https://github.com/lxc/incus/security/advisories/GHSA-mmj7-8rgf-mx2h

All references

https://github.com/lxc/incus/security/advisories/GHSA-mmj7-8rgf-mx2h
https://www.vulncheck.com/advisories/incus-7.0.0-before-7.0.2-and-7.1.0-before-7.5.0-unsigned-header-bypass-in-presigned-s3-upload-urls

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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