Red HatCVE-2026-76925
Red Hat Flatpak: race condition
Medium5.8CVE-2026-76925 · Published Sep 4, 2026 · updated Sep 8, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-367
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 4 | Red Hat libtpms: denial of service | Medium6.5 | No fix yet |
| Sep 4 | Red Hat libsoup.: reachable assertion | Medium5.9 | No fix yet |
| Sep 4 | Red Hat Enterprise Linux 10: integer overflow | Medium6.5 | No fix yet |
| Sep 4 | Red Hat: heap buffer overflow | High7.5 | No fix yet |
| Sep 4 | Red Hat libsoup: use after free | High7.6 | No fix yet |
| Sep 3 | Red Hat Ansible Automation Platform 2: improper signature check | Medium5.9 | No fix yet |