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CVE-2026-39902EUVD-2026-109088GHSA-C4QP-J9R9-FQ24

Cacti: Authenticated RCE on Data Input

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.2.31
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Cacti, an open source performance and fault management framework, is affected by this vulnerability. The impact is that an authenticated administrator can bypass the input filtering on data input fields and execute arbitrary commands on the underlying system.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

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.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  4. Record last updated

Affected versions

  • Cacti cacti

    fixed in 1.2.31

References 3

GitHub · Cacti/cacti

GitHub · kx00007/CVE-2026-39902