CVE-2026-23520: Arcane provides modern docker management

Q: How do I fix CVE-2026-23520?

arcane: upgrade to 1.13.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-23520 being exploited?

CVE-2026-23520 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-23520 affect?

CVE-2026-23520 affects arcane. Severity is critical (CVSS 9.0). Arcane provides modern docker management. Prior to 1.13.0, Arcane has a command injection in the updater service. Arcane’s updater service supported lifecycle labels com.getarcaneapp.arcane.lifecycle.pre-update and com.getarcaneapp.arcane.l

Q: How urgent is CVE-2026-23520?

Priority 61/100. Critical severity; Public exploit reference; On your watchlist

This week

CRITICAL 9.0WATCHLISTUPGRADE

CVE-2026-23520 is a critical-severity flaw (CVSS 9.0) affecting arcane. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Arcane provides modern docker management. Prior to 1.13.0, Arcane has a command injection in the updater service. Arcane’s updater service supported lifecycle labels com.getarcaneapp.arcane.lifecycle.pre-update and com.getarcaneapp.arcane.lifecycle.post-update that allowed defining a command to run before or after a container update. The label value is passed directly to /bin/sh -c without sanitization or validation. Because any authenticated use

Why this priority

Critical severity
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-01-15
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: arcane

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-15 20:16 UTCPublished CVE record published
2026-06-17 10:21 UTCUpdated Record last modified

arcane arcane UPGRADE

Affected: < 1.13.0

Fixed in: 1.13.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy arcane || rpm -q arcane || arcane --version

2. UPGRADE to 1.13.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade arcane

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade arcane

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Go · github.com/getarcaneapp/arcane/backend · FIXED · 0.0.0-20260114065515-5a9c2f92e11f · vulnerable: < 0.0.0-20260114065515-5a9c2f92e11f · source

go get github.com/getarcaneapp/arcane/backend@v0.0.0-20260114065515-5a9c2f92e11f go list -m github.com/getarcaneapp/arcane/backend

Fedora 46 · jgmenu · FIXED · 4.7.0-1.fc46 · FEDORA-2026-3053ee4399 · source

sudo dnf upgrade --advisory=FEDORA-2026-3053ee4399

Fedora ELN · python-tkrzw · FIXED · 0.1.32-12.eln159 · FEDORA-2026-0161d71544 · source

sudo dnf upgrade --advisory=FEDORA-2026-0161d71544

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: Augmaster/POC-CVE-2026-23520 (2 stars)
GitHub PoC: cypher-21/CVE-2026-23520 (2 stars)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-23520?

arcane: upgrade to 1.13.0. Exact commands for each OS are on this page.

Is CVE-2026-23520 being exploited?

CVE-2026-23520 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-23520 affect?

CVE-2026-23520 affects arcane. Severity is critical (CVSS 9.0). Arcane provides modern docker management. Prior to 1.13.0, Arcane has a command injection in the updater service. Arcane’s updater service supported lifecycle labels com.getarcaneapp.arcane.lifecycle.pre-update and com.getarcaneapp.arcane.l

How urgent is CVE-2026-23520?

Priority 61/100. Critical severity; Public exploit reference; On your watchlist

Software pages

Docker vulnerabilities

Related CVEs

CVE-2026-40242 HIGH 7.2 UPGRADE Arcane is an interface for managing Docker containers, images, networks, and volumes
CVE-2026-42461 HIGH 7.5 UPGRADE Arcane is an interface for managing Docker containers, images, networks, and volumes
CVE-2026-23944 CRITICAL 9.8 UPGRADE Arcane is an interface for managing Docker containers, images, networks, and volumes

References

← Back to latest CVEs