CVE-2026-105475: WebPros cPanel · Improper Neutralization of Null Byte or NUL Character
Affects WebPros cPanelSource CVE Database V5
Not known to be exploited · CVSS 8.7 High · fixed in 11.138.0.19 : patch WebPros cPanel soon.
Data as of 2 Nov 2026, 21:58 UTC
Thin evidence
One scorer or none| CNA (hackerone) | CVSS 4.0 | 8.7 |
|---|
- Patch
- Available – fixed in 11.138.0.19, 11.136.0.51, 11.134.0.67 +1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2 Nov 2026.
What to do
Upgrade cPanel and cpanel/cpanel to 11.138.0.19, 11.136.0.51, 11.134.0.67 or 11.110.0.154.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| WebProscPanel | Affected
| Fixed in
|
| WebProscPanel | Affected
| Fixed in
|
| WebProscPanel | Affected
| Fixed in
|
| WebProscPanel | Affected
| Fixed in
|
Cpanelcpanel/cpanelpkg:rpm/cpanel/cpanelOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Apply the official fixes by upgrading to cPanel versions 11.138.0.19, 11.136.0.51, 11.134.0.67, or 11.110.0.154 or later. These versions contain patches that address the null byte neutralization issue. Since this is not a cloud service, manual patching is required. No additional mitigation steps are indicated by the vendor advisory.
Description
Improper neutralization of a NUL byte in cPanel allows remote attackers to read any mail account's calendar and contact data.