CVE-2024-26135: MeshCentral is a full computer management web site

Q: How do I fix CVE-2024-26135?

meshcentral: upgrade to 1.1.21. Exact commands for each OS are on this page.

Q: Is CVE-2024-26135 being exploited?

CVE-2024-26135 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-2024-26135 affect?

CVE-2024-26135 affects meshcentral. Severity is high (CVSS 8.3). MeshCentral is a full computer management web site. Versions prior to 1.1.21 a cross-site websocket hijacking (CSWSH) vulnerability within the control.ashx endpoint. This component is the primary mechanism used within MeshCentral to perform

Q: How urgent is CVE-2024-26135?

Priority 44/100. High severity; Public exploit reference

This month

HIGH 8.3UPGRADE

CVE-2024-26135 is a high-severity flaw (CVSS 8.3) affecting meshcentral. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MeshCentral is a full computer management web site. Versions prior to 1.1.21 a cross-site websocket hijacking (CSWSH) vulnerability within the control.ashx endpoint. This component is the primary mechanism used within MeshCentral to perform administrative actions on the server. The vulnerability is exploitable when an attacker is able to convince a victim end-user to click on a malicious link to a page hosting an attacker-controlled site. The att

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.3 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-346
Published	2024-02-20
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2024-02-20 20:15 UTCPublished CVE record published
2026-06-17 07:17 UTCUpdated Record last modified

meshcentral meshcentral UPGRADE

Affected: < 1.1.21

Fixed in: 1.1.21

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.1.21 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade meshcentral

Note

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

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-2024-26135?

meshcentral: upgrade to 1.1.21. Exact commands for each OS are on this page.

Is CVE-2024-26135 being exploited?

CVE-2024-26135 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-2024-26135 affect?

CVE-2024-26135 affects meshcentral. Severity is high (CVSS 8.3). MeshCentral is a full computer management web site. Versions prior to 1.1.21 a cross-site websocket hijacking (CSWSH) vulnerability within the control.ashx endpoint. This component is the primary mechanism used within MeshCentral to perform

How urgent is CVE-2024-26135?

Priority 44/100. High severity; Public exploit reference

Related CVEs

CVE-2023-51842 HIGH 7.5 DOWNGRADE An algorithm-downgrade issue was discovered in Ylianst MeshCentral 1.1.16.
CVE-2023-51838 HIGH 7.5 DOWNGRADE Ylianst MeshCentral 1.1.16 suffers from Use of a Broken or Risky Cryptographic Algorithm.
CVE-2023-51837 CRITICAL 9.8 DOWNGRADE Ylianst MeshCentral 1.1.16 is vulnerable to Missing SSL Certificate Validation.

References

← Back to latest CVEs