CVE-2026-39902: high-severity vulnerability in cacti
Cacti: Authenticated RCE on Data Input
Published · Updated
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.2epss 0.4%
from disclosure to weapon0 days
Published on NVDOct 23
1st PoCApr 4
exploitation probability
0.4%top 66% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Cacti is an open source performance and fault management framework. Prior to version 1.2.31, the prior blocklist ([;&| `$\\n\r]) omitted single-quote, double-quote, redirect operators, subshell parens and braces. An authenticated admin could save an input_string` containing single-quote, redirect operator, or subshell parens, and pass the check. This issue has been patched in version 1.2.31.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Cacti · cactipublic PoCs found — 1
githubgithub.com/kx00007/CVE-2026-39902★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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