# CVE-2026-39902: cacti: Cacti is an open source performance and fault management framework

CVE-2026-39902 is fixed in cacti on 1 platform by DEBIAN-CVE-2026-39902 (version 1.2.31+ds1-1), released October 24, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-39902
- Priority: High
- CVSS: 7.2 (high)
- EPSS: 0.0040
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 23, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | cacti Debian 14 | 1.2.31+ds1-1 | [DEBIAN-CVE-2026-39902](https://patchblox.com/security/data/fix/linux/debian-cve-2026-39902.md) | Oct 24, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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