CVE-2026-109295

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Source
https://cve.org/CVERecord?id=CVE-2026-109295
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109295.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109295
Aliases
  • GHSA-gfjp-5hc9-852r
Published
2026-10-12T16:04:54Z
Modified
2026-10-28T02:31:06Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Open WebUI 0.11.0 before 0.11.4 ReDoS via grep_knowledge_files Event Loop
Details

Open WebUI from 0.11.0 before 0.11.4 contains a regular expression denial of service vulnerability that allows authenticated users to stall server workers via file search patterns. Attackers can instruct the model to call grep_knowledge_files or grep_chat_files with a catastrophically backtracking regex, blocking the event loop for two seconds per repeated call.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-1333"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109295.json"
}
References

Affected packages

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

Affected ranges

Type
GIT
Repo
https://github.com/open-webui/open-webui
Events
Introduced
f9590b8017199e56d5e953657e6498e3cef1d246
Fixed
8bd8b4fac5e059578ac0c74b3c18d11139f88b7d
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0.11.0"
                },
                {
                    "fixed": "0.11.4"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "0.11.0"
                },
                {
                    "fixed": "0.11.4"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

v0.*
v0.11.0
v0.11.1
v0.11.2
v0.11.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109295.json"