CVE-2026-45316
âšī¸ lowSummary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the POST /api/v1/notes/{id}/pin endpoint performs a write operation (toggling the is_pinned field) but only checks for read permission. Users with read-only access to a shared note can pin/unpin it, which is a state-modifying action that should require write permission. This vulnerability is fixed in 0.9.3.
CVSS Score
3.5
Low
EPSS Score
0.0
Exploit Probability
Published Date
2026-05-15
First Seen: 2026-05-17
đ Relative Risk Intelligence
This CVE is Lower Risk - more severe than 3.9% of all 329,456 vulnerabilities in our database.
#316,686
Below average severity
Severity Percentile
đ¯ CISA SSVC Assessment Updated: May 18, 2026
đ Exploitation Status
Poc
Proof-of-concept available
âī¸ Automatable
NO
Requires human interaction
đĨ Technical Impact
Partial
Limited system impact
SSVC data provided by
CISA
Last Modified
2026-05-18
Source
NVD đ
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CWE IDs (Weakness Types)