CVE-2026-3103 describes a logic error in Checkmk versions prior to 2.4.0p23 and 2.3.0p43, and in the EOL 2.2.0 release. This flaw allows a low-privileged user to trigger data loss through the remove_password() function. Rated Medium with a CVSS score of 5.4, the vulnerability is network-exploitable with low attack complexity and requires low privileges, resulting in low impact to integrity and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.3.0, < 2.3.0p43CPE match | cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* | ||
>= 2.4.0, < 2.4.0p23CPE match | cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* | ||
2.2.0CPE matchmatch criteria | cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:* | ||
2.3.0CPE matchmatch criteria | cpe:2.3:a:checkmk:checkmk:2.3.0:-:*:*:*:*:*:* | ||
2.3.0CPE matchmatch criteria | cpe:2.3:a:checkmk:checkmk:2.3.0:b1:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.