SEPTEMBER 17, 2026
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Case File

CVE-2026-76925

MEDIUM · CVSS 5.8 EPSS 0.10% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-04 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

A race condition vulnerability in the `org.freedesktop.Flatpak.SystemHelper` component allows attackers to exploit a timing window during the `Deploy()` function, where a privileged `chmod` operation occurs before validating the OSTree repository. This could enable unauthorized file manipulation or information disclosure by redirecting symlinks to arbitrary files. Organizations utilizing Flatpak should prioritize addressing this issue to mitigate potential security risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-76925
Severity
MEDIUM
CVSS
5.8
EPSS
0.10%

Original NVD Description

A flaw was found in Flatpak. A Time-of-check to time-of-use (TOCTOU) race condition exists in the `org.freedesktop.Flatpak.SystemHelper` component. This vulnerability occurs because a privileged `chmod` operation executes before the OSTree repository validation within the `Deploy()` function. An attacker can exploit this timing window to redirect symlinks to arbitrary files, potentially leading to unauthorized file manipulation or information disclosure.