Cacti: User Enumeration via Error Messages

Description

Cacti is an open source performance and fault management framework. Prior to version 1.2.31, a User Enumeration vulnerability allows an attacker to identify valid usernames on the Cacti service. When a user attempts to log in, the application returns slightly different error messages depending on whether the provided username exists in the system. When username exists on Cacti, in the response, they see Access Denied! Login failed. When it does not exist on Cacti, they see Access Denied! Login Failed. The only difference between the responses is the capitalization of the letter "f" in the word failed. This issue has been patched in version 1.2.31.

Scores

EPSS (exploitation in 30 days)

0.24% · top 85% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: poc · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

• CWE-204: Observable Response Discrepancy (opens in a new tab)All about CWE-204 and its CVEs

Affected products

• Cacti · cacti

  • affected < 1.2.31

References (3)

• https://github.com/Cacti/cacti/security/advisories/GHSA-m7v2-f3xw-3qh7 (opens in a new tab)x_refsource_CONFIRMexploit
• https://github.com/Cacti/cacti/pull/7166 (opens in a new tab)x_refsource_MISC
• https://github.com/Cacti/cacti/commit/ab4baf338d65dcaafe1bd97d1e2a310fe0af0e3e (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-49442](https://trackcve.app/badge/CVE-2026-49442.svg)](https://trackcve.app/cve/CVE-2026-49442)

Record last updated 30 Oct 2026, 19:50 UTC.