CVE-2026-41315: mdserver-web is a simple Linux panel

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CRITICAL 9.8REMOTEWATCHLISTUPGRADE

CVE-2026-41315 is a critical-severity flaw (CVSS 9.8) affecting mdserver-web. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

mdserver-web is a simple Linux panel. From 0.18.0 to 0.18.4, mdserver-web has a front-end unauthorized remote command execution vulnerability. Due to the lack of authentication on the /modify_crond and /start_task interfaces, it is possible to modify the default built-in scheduled tasks and start them, achieving RCE.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

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	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-78, CWE-862
Published	2026-05-14
Last modified	2026-10-26

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

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-14 19:16 UTCPublished CVE record published
2026-10-26 14:10 UTCUpdated Record last modified

midoks mdserver-web UPGRADE

Affected: >= 0.18.0 and <= 0.18.4

Fixed in: newer than 0.18.4

Safe to downgrade to: a release before 0.18.0

1. Check installed version

apt-cache policy mdserver-web || rpm -q mdserver-web || mdserver-web --version

2. UPGRADE to newer than 0.18.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mdserver-web

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mdserver-web

Note

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

3. If no update is available yet, DOWNGRADE to a release before 0.18.0 (Debian / Ubuntu)

apt-cache madison mdserver-web sudo apt install mdserver-web=<VERSION_BEFORE_0.18.0> sudo apt-mark hold mdserver-web

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mdserver-web sudo dnf downgrade mdserver-web-<VERSION_BEFORE_0.18.0> sudo dnf versionlock add mdserver-web

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.

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: github.com/midoks/mdserver-web/security/advisories/GHSA-3h92-g9hr-xc25

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-2026-41315?

mdserver-web: upgrade to newer than 0.18.4. Exact commands for each OS are on this page.

Is CVE-2026-41315 being exploited?

CVE-2026-41315 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-2026-41315 affect?

CVE-2026-41315 affects mdserver-web. Severity is critical (CVSS 9.8). mdserver-web is a simple Linux panel. From 0.18.0 to 0.18.4, mdserver-web has a front-end unauthorized remote command execution vulnerability. Due to the lack of authentication on the /modify_crond and /start_task interfaces, it is possible

How urgent is CVE-2026-41315?

Priority 68/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

References

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