01 Record
CVE-2026-87012
Open WebUI: Any authenticated user can suppress calendar alerts instance-wide via a non-numeric alert value
MediumPUBLISHEDCNA: GitHub_M
CNA base score4.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
02 Description
Open WebUI: Any authenticated user can suppress calendar alerts instance-wide via a non-numeric alert value
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.48% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 41.4% of scored records. A rank, not a probability.
- NVD base score
- 4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-09-15.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-09 20:57Z1 MO AGO
- Last updated
- 2026-09-10 17:48Z1 MO AGO
- Reserved
- 2026-09-08
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- Data version
- 5.2
- Document digest
- 75b566e5f4998a2a7be6ab997822c48eab75d15574c31d8d14f748d7bac9818a
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/open-webui/open-webui/security/advisories/GHSA-v39v-59xw-j98g
- github.comhttps://github.com/open-webui/open-webui/pull/28790
- github.comhttps://github.com/open-webui/open-webui/commit/abc69000b33b4894fbd97fc2c962139cf9a8d784
- github.comhttps://github.com/open-webui/open-webui/releases/tag/v0.11.1