CVE-2026-33542— Incus does not verify combined fingerprint when downloading images from simplestreams servers
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-33542
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Incus does not verify combined fingerprint when downloading images from simplestreams servers
Source: NVD (National Vulnerability Database)
Vulnerability Description
Incus is a system container and virtual machine manager. Prior to version 6.23.0, a lack of validation of the image fingerprint when downloading from simplestreams image servers opens the door to image cache poisoning and under very narrow circumstances exposes other tenants to running attacker controlled images rather than the expected one. Version 6.23.0 patches the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Incus 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Incus是LXC开源的一个系统容器和虚拟机管理器。 Incus 6.23.0之前版本存在信任管理问题漏洞，该漏洞源于从simplestreams镜像服务器下载时缺少镜像指纹验证，可能导致镜像缓存投毒。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-33542
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-33542
请登录查看更多情报信息。
Same Patch Batch · lxc · 2026-03-26 · 6 CVEs total
| CVE-2026-33897 | 10.0 CRITICAL | Incus vulnerable to arbitrary file read and write through pongo templates |
| CVE-2026-33945 | 10.0 CRITICAL | Abitrary file write through systemd-creds option |
| CVE-2026-33898 | 8.8 HIGH | Local Incus UI web server vulnerable to nuthentication bypass |
| CVE-2026-33743 | 6.5 MEDIUM | Incus vulnerable to denial of source through crafted bucket backup file |
| CVE-2026-33711 | Incus vulnerable to local privilege escalation through VM screenshot path |
IV. Related Vulnerabilities
Same product: incus
- CVE-2026-41685
Incus: Unbounded binary import disk exhaustion - CVE-2026-41684
Incus: Nil Dereferences on Restore via Malformed YAML - CVE-2026-41648
Incus: Unbounded YAML Metadata Decode via Parsing - CVE-2026-41647
Incus: Nil-Pointer Dereference via S3 Bucket Import - CVE-2026-40251
Incus out-of-bounds panic in snapshot metadata handling allo
Same vendor: lxc
- CVE-2026-41685
Incus: Unbounded binary import disk exhaustion - CVE-2026-41684
Incus: Nil Dereferences on Restore via Malformed YAML - CVE-2026-41648
Incus: Unbounded YAML Metadata Decode via Parsing - CVE-2026-41647
Incus: Nil-Pointer Dereference via S3 Bucket Import - CVE-2026-40251
Incus out-of-bounds panic in snapshot metadata handling allo
Same weakness: CWE-295
V. Comments for CVE-2026-33542
No comments yet