CVE-2026-70489

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Source
https://cve.org/CVERecord?id=CVE-2026-70489
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70489.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-70489
Aliases
Published
2026-08-04T20:42:31.752Z
Modified
2026-08-10T11:40:56.844049129Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Open WebUI: Instance-wide stall via automation recurrence rules that force multi-second parsing
Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, automation recurrence parsing in backend/open_webui/utils/automations.py anchored minutely and hourly rules at a fixed date of 2000-01-01 and then walked forward one interval at a time to find the next run. A single FREQ=MINUTELY rule enumerates roughly a quarter-century of occurrences synchronously on the event loop that also serves scheduler, HTTP, and WebSocket traffic, and the scheduler recomputes the next run for every claimed row on each poll. This causes availability impact for every other user of the instance. This issue is fixed in 0.11.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70489.json",
    "cwe_ids": [
        "CWE-1333",
        "CWE-400"
    ]
}
References

Affected packages

Git / github.com/open-webui/open-webui

Affected ranges

Type
GIT
Repo
https://github.com/open-webui/open-webui
Events
Introduced
f31768e20e5c6b4f6da0ef657877298b359936cf
Fixed
c4ae8c86786fed521960466f6d8eef8af22c2946
Fixed
f9590b8017199e56d5e953657e6498e3cef1d246
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.9.0"
        },
        {
            "fixed": "0.11.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.10.0
v0.10.1
v0.10.2
v0.9.0
v0.9.1
v0.9.2
v0.9.3
v0.9.4
v0.9.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70489.json"