Bug 2559925 (CVE-2026-39902) - CVE-2026-39902 cacti: Cacti: Arbitrary command execution via incomplete character blocklist
Summary: CVE-2026-39902 cacti: Cacti: Arbitrary command execution via incomplete chara...
Keywords:
Status: NEW
Alias: CVE-2026-39902
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2564593
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-23 15:04 UTC by OSIDB Bzimport
Modified: 2026-11-01 20:26 UTC (History)
0 users

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Description OSIDB Bzimport 2026-10-23 15:04:14 UTC 
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.
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