CVE-2026-70481

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Source

https://cve.org/CVERecord?id=CVE-2026-70481

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70481.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-70481

Aliases

Published

2026-08-04T19:45:37Z

Modified

2026-09-10T03:30:22Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator

Summary

Open WebUI: Any member with write access to a standard channel can edit or delete other members' messages

Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.0, the standard channel message update and delete handlers accepted any caller holding write access on the channel without checking that the caller wrote the message. Because write access is the same grant a member needs to post, any ordinary participant in a shared standard channel could rewrite or permanently delete another participant message, while group and direct message handlers enforced authorship. This issue is fixed in 0.11.0.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-284",
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70481.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

22132e155aa7e8522f4c79a7aae4bcfc0d7f6b0d

Fixed

c609ec41154fa092fa0af80d9d365de06b666286

Fixed

f9590b8017199e56d5e953657e6498e3cef1d246

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0.5.0"
        },
        {
            "fixed": "0.11.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*

v0.10.0

v0.10.1

v0.10.2

v0.5.0

v0.5.1

v0.5.10

v0.5.11

v0.5.12

v0.5.13

v0.5.14

v0.5.15

v0.5.16

v0.5.17

v0.5.18

v0.5.19

v0.5.2

v0.5.20

v0.5.3

v0.5.4

v0.5.5

v0.5.6

v0.5.7

v0.5.8

v0.5.9

v0.6.0

v0.6.1

v0.6.10

v0.6.11

v0.6.12

v0.6.13

v0.6.14

v0.6.15

v0.6.16

v0.6.17

v0.6.18

v0.6.19

v0.6.2

v0.6.20

v0.6.21

v0.6.22

v0.6.23

v0.6.24

v0.6.25

v0.6.26

v0.6.27

v0.6.28

v0.6.29

v0.6.3

v0.6.30

v0.6.31

v0.6.32

v0.6.33

v0.6.34

v0.6.35

v0.6.36

v0.6.37

v0.6.38

v0.6.39

v0.6.4

v0.6.40

v0.6.41

v0.6.42

v0.6.43

v0.6.5

v0.6.6

v0.6.7

v0.6.8

v0.6.9

v0.7.0

v0.7.1

v0.7.2

v0.8.0

v0.8.1

v0.8.10

v0.8.11

v0.8.12

v0.8.2

v0.8.3

v0.8.4

v0.8.5

v0.8.6

v0.8.7

v0.8.8

v0.8.9

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-2026-70481.json"