lxc incus Path Traversal Flaw (CVE-2026-115375) Rated CVSS 9.4
A newly published critical vulnerability in lxc incus carries a CVSS score of 9.4. Here is what is affected and how to respond.
Key points
- CVE-2026-115375 affects lxc incus.
- CVSS 9.4 (Critical).
- No exploitation confirmed yet.
A critical path traversal tracked as CVE-2026-115375 has been published in the National Vulnerability Database for lxc incus, with a CVSS base score of 9.4.
At a glance
- CVE
- CVE-2026-115375
- Product
- lxc incus
- CVSS
- 9.4 Critical
- Weakness
- path traversal
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 contains a path traversal vulnerability that allows clients able to create instances to write files on the host. The flaw stems from unvalidated dependent custom volume names in instance backup index.yaml files. Attackers can import a crafted instance backup with ../ sequences in dependent volume names to create root-owned directories with controlled content, leading to full host compromise.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Lxc | incus | before 7.0.2, before 7.5.0 |
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-115375
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-115375?
CVE-2026-115375 is a path traversal vulnerability in lxc incus.
How severe is CVE-2026-115375?
It has a CVSS score of 9.4 Critical.
Is CVE-2026-115375 being exploited?
There is no public confirmation of exploitation at the time of publication.
