CVE-2026-19755

Local file disclosure via trusted bundle path

Published Aug 20, 2026 · Updated Aug 20, 2026

Improper authorization in NoSleep 1.5.1 allows local users to expose root-owned files via crafted XPC messages to its privileged helper. The helper's Mach service reads command and NSBundlePath directly from each dictionary, derives a kext path from the supplied bundle path, and then recursively applies root ownership and permissive modes to that tree without validating the sender or constraining symlinked paths. Exploitation requires local code execution and access to the service, and the reachable effect is disclosure of attacker-selected files plus limited permission tampering on files reachable under a crafted bundle path.

CVSS severity6.9
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in NoSleep 1.5.1 allows local users to expose root-owned files via crafted XPC messages to its privileged helper. The helper's Mach service reads command and NSBundlePath directly from each dictionary, derives a kext path from the supplied bundle path, and then recursively applies root ownership and permissive modes to that tree without validating the sender or constraining symlinked paths. Exploitation requires local code execution and access to the service, and the reachable effect is disclosure of attacker-selected files plus limited permission tampering on files reachable under a crafted bundle path.

The record

CVE
CVE-2026-19755
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
integralpro
Product
NoSleep
Classifications
CWE-862, T1222
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 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=1.5.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

integralpro · NoSleepversion=1.5.1

Published CVSS scores

6.9Fluid AttacksCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/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-862Missing Authorization
T1222File and Directory Permissions Modification

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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