CVE-2026-109298

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Source
https://cve.org/CVERecord?id=CVE-2026-109298
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109298.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109298
Aliases
  • GHSA-gww9-mhgj-pfqh
Published
2026-10-12T16:04:56Z
Modified
2026-10-13T02:46:16Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Open WebUI 0.11.0 before 0.11.4 Memory Exhaustion via Knowledge Search Regex
Details

Open WebUI 0.11.0 before 0.11.4 compiles user-chosen grep patterns for its knowledge and chat file search tools with a regex engine that expands nested counted repetition unbounded at compile time and caches the result. Authenticated users can have the model call grep_knowledge_files with short nested-repetition patterns, blocking the event loop and exhausting worker memory.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109298.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":  [
        {
            "introduced":  "0.11.0"
        },
        {
            "fixed":  "0.11.4"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

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-2026-109298.json"