CVE-2024-2056: Services that are running and bound to the loopback interface on the Artica Proxy are accessible through the p

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2024-2056 is a critical-severity flaw (CVSS 9.8) affecting artica proxy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Services that are running and bound to the loopback interface on the Artica Proxy are accessible through the proxy service. In particular, the "tailon" service is running, running as the root user, is bound to the loopback interface, and is listening on TCP port 7050. Security issues associated with exposing this network service are documented at gvalkov's 'tailon' GitHub repo. Using the tailon service, the contents of any file on the Artica Prox

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	16.7% (top 3%)
CISA exploited list	No
Weakness	CWE-288, CWE-552
Published	2024-03-05
Last modified	2026-06-17

Publisher (CNA): Austin Hackers Anonymous · Vendor: articatech

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

Am I affected?

Timeline

2024-03-05 20:16 UTCPublished CVE record published
2026-06-17 07:23 UTCUpdated Record last modified

articatech artica proxy DOWNGRADE

Affected: 4.50.000000

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.50.000000

1. Check installed version

apt-cache policy artica-proxy || rpm -q artica-proxy || artica-proxy --version

2. No fixed release: DOWNGRADE to a release before 4.50.000000 (Debian / Ubuntu)

apt-cache madison artica-proxy sudo apt install artica-proxy=<VERSION_BEFORE_4.50.000000> sudo apt-mark hold artica-proxy

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list artica-proxy sudo dnf downgrade artica-proxy-<VERSION_BEFORE_4.50.000000> sudo dnf versionlock add artica-proxy

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · sbcl · FIXED · 2.6.10-1.fc46 · FEDORA-2026-feab1a81c6 · source

sudo dnf upgrade --advisory=FEDORA-2026-feab1a81c6

Fedora ELN · python-archspec · FIXED · 0.2.7-1.eln159 · FEDORA-2026-e2a8272db6 · source

sudo dnf upgrade --advisory=FEDORA-2026-e2a8272db6

Public exploits and detection

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

Write-up: korelogic.com/Resources/Advisories/KL-001-2024-004.txt

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-2024-2056?

artica proxy: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-2056 being exploited?

CVE-2024-2056 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-2024-2056 affect?

CVE-2024-2056 affects artica proxy. Severity is critical (CVSS 9.8). Services that are running and bound to the loopback interface on the Artica Proxy are accessible through the proxy service. In particular, the "tailon" service is running, running as the root user, is bound to the loopback interface, and is

How urgent is CVE-2024-2056?

Priority 72/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities

Related CVEs

CVE-2024-2055 CRITICAL 9.8 DOWNGRADE The "Rich Filemanager" feature of Artica Proxy provides a web-based interface for file management capabilities
CVE-2024-2054 CRITICAL 9.8 DOWNGRADE The Artica-Proxy administrative web application will deserialize arbitrary PHP objects supplied by unauthentic
CVE-2024-2053 HIGH 7.5 DOWNGRADE The Artica Proxy administrative web application will deserialize arbitrary PHP objects supplied by unauthentic

References

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