CVE-2026-49442
Cacti: User Enumeration via Error Messages
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
5.3
Cacti: User Enumeration via Error Messages
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.
- Record
CVE-2026-49442- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-204
- Updated
- 2026-11-02
EUVDEUVD-2026-109089
5.3
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.
- Record
EUVD-2026-109089- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
NVD
5.3
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.
- Record
CVE-2026-49442- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-204
- Updated
- 2026-11-02
OSV
5.3
Cacti: User Enumeration via Error Messages
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.
- Record
CVE-2026-49442- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-204
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-49442
5.3
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.
- Record
DEBIAN-CVE-2026-49442- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-49442
5.3
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.
- Record
UBUNTU-CVE-2026-49442- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
cactiDebian:12 |
All versions, plus listed versions 1.2.24+ds1-11.2.24+ds1-1+deb12u11.2.24+ds1-1+deb12u21.2.24+ds1-1+deb12u31.2.24+ds1-1+deb12u4 Show 17 moreShow less1.2.24+ds1-1+deb12u51.2.25+ds1-11.2.25+ds1-21.2.26+ds1-11.2.27+ds1-11.2.27+ds1-21.2.28+ds1-11.2.28+ds1-21.2.28+ds1-31.2.28+ds1-41.2.30+ds1-11.2.30+ds1-21.2.30+ds1-31.2.31+ds1-11.2.31+ds1-21.2.31+ds1-31.2.31+ds1-4 |
None known |
cactiDebian:13 |
All versions, plus listed versions 1.2.30+ds1-11.2.30+ds1-21.2.30+ds1-31.2.31+ds1-11.2.31+ds1-21.2.31+ds1-31.2.31+ds1-4 |
None known |
cactiDebian:14 |
before 1.2.31+ds1-1, plus listed versions 1.2.30+ds1-11.2.30+ds1-21.2.30+ds1-3 |
1.2.31+ds1-1 |
cactiUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 0.8.8b+dfsg-30.8.8b+dfsg-50.8.8b+dfsg-5ubuntu0.10.8.8b+dfsg-5ubuntu0.20.8.8b+dfsg-5ubuntu0.2+esm10.8.8b+dfsg-5ubuntu0.2+esm2 |
None known |
cactiUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.8.8f+ds1-20.8.8f+ds1-30.8.8f+ds1-40.8.8f+ds1-4ubuntu10.8.8f+ds1-4ubuntu2 Show 7 moreShow less0.8.8f+ds1-4ubuntu30.8.8f+ds1-4ubuntu40.8.8f+ds1-4ubuntu4.16.040.8.8f+ds1-4ubuntu4.16.04.10.8.8f+ds1-4ubuntu4.16.04.20.8.8f+ds1-4ubuntu4.16.04.2+esm10.8.8f+ds1-4ubuntu4.16.04.2+esm2 |
None known |
cactiUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.1.18+ds1-11.1.27+ds1-21.1.27+ds1-31.1.28+ds1-21.1.35+ds1-1 Show 5 moreShow less1.1.36+ds1-11.1.38+ds1-11.1.38+ds1-1ubuntu0.1~esm11.1.38+ds1-1ubuntu0.1~esm31.1.38+ds1-1ubuntu0.1~esm4 |
None known |
cactiUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.2.4+ds1-2ubuntu31.2.9+ds1-1ubuntu11.2.9+ds1-1ubuntu21.2.10+ds1-1ubuntu11.2.10+ds1-1ubuntu1+esm11.2.10+ds1-1ubuntu1.11.2.10+ds1-1ubuntu1.1+esm11.2.10+ds1-1ubuntu1.1+esm2 |
None known |
cactiUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 1.2.16+ds1-2ubuntu11.2.19+ds1-2ubuntu11.2.19+ds1-2ubuntu1+esm11.2.19+ds1-2ubuntu1.11.2.19+ds1-2ubuntu1.1+esm11.2.19+ds1-2ubuntu1.1+esm2 |
None known |
cactiUbuntu:24.04:LTS |
All versions, plus listed versions 1.2.25+ds1-21.2.26+ds1-11.2.26+ds1-1ubuntu0.1 |
None known |
cactiUbuntu:26.10 |
All versions, plus listed versions 1.2.30+ds1-1ubuntu21.2.30+ds1-1ubuntu31.2.31+ds1-3ubuntu2 |
None known |
cactiUbuntu:26.04:LTS |
All versions, plus listed versions 1.2.30+ds1-1ubuntu11.2.30+ds1-1ubuntu2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-49442 is a medium vulnerability (CVSS 5.3) in Cacti, published October 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 14th percentile. Fixed in cacti 1.2.31+ds1-1.
References
github.com/Cacti/cacti/security/advisories/GHSA-m7v2-f3xw-3qh7
github.com/Cacti/cacti/pull/7166
github.com/Cacti/cacti/commit/ab4baf338d65dcaafe1bd97d1e2a310fe0af0e3e
github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49442.json
nvd.nist.gov/vuln/detail/CVE-2026-49442
security-tracker.debian.org/tracker/CVE-2026-49442
ubuntu.com/security/CVE-2026-49442
cve.org/CVERecord?id=CVE-2026-49442