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CVE-2026-115378— Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Recursive File Pull

Quick assessment

Affected
lxc incus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Incus 6.0.7 之前、6.1.0 至 7.0.2 之间，以及 7.1.0 至 7.5.0 之间的版本中， 函数存在任意文件写入漏洞。该漏洞允许恶意的 incus-agent 在执行 命令时，突破目标目录的限制。拥有虚拟机 root 权限的攻击者可以返回重复的条目，这些条目首先被报告为符号链接，随后又被报告为文件或目录，从而在操作员的主机上写入由攻击者控制的文件（例如 ）。

CVSS 5.8 · Medium

Affected Version Matrix 6

VendorProduct Version RangeStatus
lxc incus < 6.0.7 affected
6.0.7 unaffected
6.1.0< 7.0.2 affected
7.0.2 unaffected
7.1.0< 7.5.0 affected
7.5.0 unaffected
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I. Basic Information for CVE-2026-115378

Vulnerability Information
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Vulnerability Title
Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Recursive File Pull
Source: CVE Program / CVE List V5
Vulnerability Description
Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability in sftpRecursivePullFile that allows a malicious incus-agent to escape the target directory during incus file pull -r. Attackers with root in a virtual machine can return duplicate entries reported first as symlinks then as files or directories, writing attacker-controlled files such as /etc/shadow on the operator's host.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
lxc incus 0 ~ 6.0.7 -

II. Public POCs for CVE-2026-115378

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III. Intelligence Information for CVE-2026-115378

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Vendor Advisories for CVE-2026-115378 (2)

Same Patch Batch · lxc · 2026-10-22 · 9 CVEs total

CVE-2026-115377 9.9 CRITICAL Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Sy
CVE-2026-115375 9.9 CRITICAL Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 Path Traversal via Instance Backup Depende
CVE-2026-115372 8.5 HIGH Incus 7.3.0 before 7.5.0 Project Restriction Bypass via block.create_options
CVE-2026-115376 7.7 HIGH Incus 7.0.1 before 7.0.2 and 7.2.0 before 7.5.0 Project Restriction Bypass via Custom Volu
CVE-2026-115374 7.1 HIGH Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 Unsigned Header Bypass in Presigned S3 Upl
CVE-2026-115371 7.1 HIGH LXC Incus 6.0.3 before 6.0.7, 6.6.0 before 7.0.2, and 7.1.0 before 7.5.0 Bucket Credential
CVE-2026-115373 6.3 MEDIUM Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Authorization Bypass via GE
CVE-2026-115370 4.3 MEDIUM Incus 6.0.5 before 6.0.7, 6.12.0 before 7.0.2, and 7.1.0 before 7.5.0 Restricted Project B

IV. Related Vulnerabilities

Same product: incus
Same vendor: lxc
Same weakness: CWE-59

V. Comments for CVE-2026-115378

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