Command Injection Affecting github.com/getarcaneapp/arcane/backend/internal/utils/arcaneupdater package, versions <1.13.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGETARCANEAPPARCANEBACKENDINTERNALUTILSARCANEUPDATER-15032757
- published18 Jan 2026
- disclosed15 Jan 2026
- creditDenizParlak
Introduced: 15 Jan 2026
CVE-2026-23520 Â (opens in a new tab)How to fix?
Upgrade github.com/getarcaneapp/arcane/backend/internal/utils/arcaneupdater to version 1.13.0 or higher.
Overview
Affected versions of this package are vulnerable to Command Injection via the updater service which supported lifecycle labels. An attacker can execute arbitrary commands by supplying a crafted value to the lifecycle label, which is then passed unsanitized to the shell for execution when a container update is triggered by an administrator.