SNYK-GOLANG-GITHUBCOMLXCINCUSV6INTERNALINSTANCE-15091894: github.com/lxc/incus/v6/internal/instance fixed in 6.21.0

SNYK-GOLANG-GITHUBCOMLXCINCUSV6INTERNALINSTANCE-15091894 PUBLISHED CVSS 8.300000190734863 HIGH

Record from snyk · Published January 26, 2026

github.com/lxc/incus/v6/internal/instance is fixed in 6.21.0 (Go Modules)

## Overview Affected versions of this package are vulnerable to CRLF Injection via improper validation of environment variable values in the container configuration process. An attacker can execute arbitrary commands as root on the host by injecting newlines into environment variables, which results in the addition of unintended configuration items such as lifecycle hooks. **Note:** LTS release version 6.0.6 also contains the patch. ## Remediation Upgrade `github.com/lxc/incus/v6/internal/instance` to version 6.21.0 or higher. ## References - [GitHub Commit](https://github.com/lxc/incus/commit/cdf037409fbb35ab0f9fdc4e0e8cc706adbca99e) - [Vulnerable Code](https://github.com/lxc/incus/blob/HEAD/internal/server/instance/drivers/driver_lxc.go#L1081)

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
github.com/lxc/incus/v6/internal/instance	Go Modules	6.21.0

Risk scores

CVSS 3.1

8.300000190734863

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

Affected products

Vendor	Product	Versions
		0

Timeline

Jan 22, 2026 CVE Updated
Jan 26, 2026 CVE Published

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln SNYK-GOLANG-GITHUBCOMLXCINCUSV6INTERNALINSTANCE-15091894
vulnetix vdb fixes SNYK-GOLANG-GITHUBCOMLXCINCUSV6INTERNALINSTANCE-15091894

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/SNYK-GOLANG-GITHUBCOMLXCINCUSV6INTERNALINSTANCE-15091894/fixes/registry"

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