CVE-2026-23520: Arcane Has a Command Injection in Arcane Updater Lifecycle Labels That Enables RCE

CVE-2026-23520 · Severity: low · CVSS 3.1 · Published 2026-01-23

Arcane Has a Command Injection in Arcane Updater Lifecycle Labels That Enables RCE in github.com/getarcaneapp/arcane/backend

Technologies: github.com/getarcaneapp/arcane/backend (Go). Vendors: Go.

Quick answers

Is CVE-2026-23520 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-23520 being exploited in the wild.
How severe is CVE-2026-23520?
Low severity, with a CVSS score of 3.1, published 23 January 2026.
Which products and versions are affected?
github.com/getarcaneapp/arcane/backend (Go) SEMVER:introduced=0,fixed=0.0.0-20260114065515-5a9c2f92e11f.
Is there a fix for CVE-2026-23520?
Yes. github.com/getarcaneapp/arcane/backend (Go): upgrade to 0.0.0-20260114065515-5a9c2f92e11f or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-23520?
Check whether you run github.com/getarcaneapp/arcane/backend (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/getarcaneapp/arcane/backend (Go): upgrade to 0.0.0-20260114065515-5a9c2f92e11f or later
    go get github.com/getarcaneapp/arcane/backend@v0.0.0-20260114065515-5a9c2f92e11f

Affected products

  • github.com/getarcaneapp/arcane/backend (Go) SEMVER:introduced=0,fixed=0.0.0-20260114065515-5a9c2f92e11f

Identifiers

  • CVE-2026-23520
  • GHSA-gjqq-6r35-w3r8
  • GO-2026-4320

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