CVE-2026-68490

Cross-account data disclosure via incorrect storage permissions

Published Sep 23, 2026 · Updated Sep 23, 2026

Incorrect permissions in WebPros cPanel before 11.134.0.57, 11.136.0.41, or 11.138.0.8 allow local users to read cross-account data. The CalDAV/CardDAV storage setup assigns permissions that expose new calendar and address-book storage, and the same permissions persist on existing accounts. Exploitation requires a local account on the same server and grants read-only access to other users' events and contacts, not modification or root access.

CVSS severityUnavailable
Unscored
EPSS probability0.14%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in WebPros cPanel before 11.134.0.57, 11.136.0.41, or 11.138.0.8 allow local users to read cross-account data. The CalDAV/CardDAV storage setup assigns permissions that expose new calendar and address-book storage, and the same permissions persist on existing accounts. Exploitation requires a local account on the same server and grants read-only access to other users' events and contacts, not modification or root access.

The record

CVE
CVE-2026-68490
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
cPanel, L.L.C.
Product
cPanel
Classifications
T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.120.0.0 <11.134.0.57
  2. Affected versionversion=11.136.0.0 <11.136.0.41
  3. Affected versionversion=11.138.0.0 <11.138.0.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

cPanel, L.L.C. · cPanelversion=11.120.0.0 <11.134.0.57; version=11.136.0.0 <11.136.0.41; version=11.138.0.0 <11.138.0.8

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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