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VulnerabilityPublished Updated

CVE-2026-49442: cacti · Prior to version 1.2.31, a User Enumeration vulnerability allows an attacker to identify valid

Affects cactiSource GCVE Database

0
Authoritative record:CVE-2026-49442· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium · fixed in 1.2.31 : update cacti when convenient.

Data as of 28 Oct 2026, 22:28 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.2.31
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10cactipkg:deb/ubuntu/cacti?arch=source&distro=stonkingOther threatsAffected
  • =1.2.30+ds1-1ubuntu2
  • =1.2.30+ds1-1ubuntu3
  • =1.2.31+ds1-3ubuntu2
Fixed in–
Ubuntu 26.04 LTScactipkg:deb/ubuntu/cacti?arch=source&distro=resoluteOther threatsAffected
  • =1.2.30+ds1-1ubuntu1
  • =1.2.30+ds1-1ubuntu2
Fixed in–
Ubuntu 24.04 LTScactipkg:deb/ubuntu/cacti?arch=source&distro=nobleOther threatsAffected
  • =1.2.25+ds1-2
  • =1.2.26+ds1-1
  • =1.2.26+ds1-1ubuntu0.1
Fixed in–
Ubuntu Pro 22.04 LTScactipkg:deb/ubuntu/cacti?arch=source&distro=esm-apps/jammyOther threatsAffected
  • 1.2.16+ds1-2ubuntu1 – 1.2.19+ds1-2ubuntu1+esm1
6 affected builds
Fixed in–
Ubuntu Pro 20.04 LTScactipkg:deb/ubuntu/cacti?arch=source&distro=esm-apps/focalOther threatsAffected
  • 1.2.4+ds1-2ubuntu3 – 1.2.10+ds1-1ubuntu1+esm1
8 affected builds
Fixed in–
Ubuntu Pro 18.04 LTScactipkg:deb/ubuntu/cacti?arch=source&distro=esm-apps/bionicOther threatsAffected
  • 1.1.18+ds1-1 – 1.1.38+ds1-1ubuntu0.1~esm4
10 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

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.

References

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