PT-2026-44372 · Presire+1 · Qsnapper

Matthias Gerstner · CVE-2026-41045 · Published 2026-05-28 · Updated 2026-06-28

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions qSnapper versions prior to 1.3.3

Description A time-to-check-time-of-use (TOCTOU) issue in the polkit authentication of qSnapper allows a local attacker to bypass the authentication mechanism. This can enable the attacker to perform operations with elevated privileges, such as acting as the root user. The software serves as a GUI frontend for the Snapper utility used for managing Btrfs snapshots.

Recommendations Update to version 1.3.3 or later.

Exploit

Fix

LPE

DoS

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2026-41045

Affected Products

Qsnapper

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41045.json · Exploit
• https://github.com/presire/qSnapper/releases/tag/v1.3.3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41045 · Security Note
• https://osv.dev/vulnerability/CVE-2026-41045 · Vendor Advisory
• https://github.com/presire/qSnapper · Note
• https://bugzilla.suse.com/show_bug.cgi?id=1261795 · Note
• https://t.me/cveNotify/178063 · Telegram Post
• https://security.opensuse.org/2026/05/26/qsnapper-dbus-issues.html#issue-polkit-bypass · Note
• https://twitter.com/HugoValters/status/2069406618580910399 · Twitter Post
• https://twitter.com/oss_security/status/2059923684861624733 · Twitter Post