CVE-2026-18751

Root file modification via external path control

Published Aug 18, 2026 · Updated Aug 19, 2026

Path traversal in Citrix Workspace app for Mac before 2607 allows local authenticated users to modify root-owned files via crafted paths. Citrix has not published the affected component, but the bulletin states that the app performs privileged file modification using an externally controlled file name or path, enabling arbitrary root file modification. Exploitation requires local authenticated access to a macOS device with the app installed and active user interaction; published impact is limited to integrity and availability, with no disclosed confidentiality impact or public root code execution claim.

CVSS severity5.2
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Citrix Workspace app for Mac before 2607 allows local authenticated users to modify root-owned files via crafted paths. Citrix has not published the affected component, but the bulletin states that the app performs privileged file modification using an externally controlled file name or path, enabling arbitrary root file modification. Exploitation requires local authenticated access to a macOS device with the app installed and active user interaction; published impact is limited to integrity and availability, with no disclosed confidentiality impact or public root code execution claim.

The record

CVE
CVE-2026-18751
Published
Aug 18, 2026
Updated
Aug 19, 2026
Vendor
Cloud Software Group
Product
Citrix Workspace app
Classifications
CWE-73
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 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?

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  1. Affected versionversion=2607

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Cloud Software Group · Citrix Workspace appversion=2607

Published CVSS scores

5.2CitrixCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-73External control of file name or path

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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