Caching of Authentication allows Authentication Bypass between users in qSnapper
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
Incorrect caching of authentication between different users of the qSnapper dbus service before version 1.3.3 allowed any local attacker to use dbus functions after a privileged users has authenticated for them.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA qSnapper (presire) Fixed in 1.3.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
presire qSnapper — github.com/presire/qSnapper/releases/tag/v1.3.3
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2026-29687 Caching of Authentication allows Authentication Bypass in qSnapperPriority LOW 38
- TI-2026-29684 Weak polkit authentication check in qSnapperPriority LOW 36
- TI-2026-29685 path traversal via `config` parameter in qSnapperPriority LOW 31
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41049
- 2026-10-03 Alias added: GHSA-cf66-c678-24r2
References
More presire Qsnapper vulnerabilities
- TI-2026-29687 Caching of Authentication allows Authentication Bypass in qSnapper CVSS 4.0HIGH 8.4
- TI-2026-29684 Weak polkit authentication check in qSnapper CVSS 3.1HIGH 8.1
- TI-2026-29685 path traversal via `config` parameter in qSnapper CVSS 3.1HIGH 7.3
- TI-2026-29686 Information leak via “diff” methods in qSnapper CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-41049 · CVE Program
- CVE-2026-41049 · NVD
- FIRST EPSS
- GHSA-cf66-c678-24r2 · GitHub Advisory Database · CC BY 4.0
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