CVE-2026-52850

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Source

https://cve.org/CVERecord?id=CVE-2026-52850

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52850.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-52850

Aliases

GHSA-5vhf-cgf2-c9cq

Published

2026-09-24T18:30:06Z

Modified

2026-10-28T02:30:28Z

Severity

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

Summary

Docmost: Broken access control in transclusion lookup API leaks sync-block content across private spaces

Details

Docmost is open-source collaborative wiki and documentation software. Prior to 0.90.1, an authenticated workspace member who does not belong to a private space can call the transclusion / sync-block lookup API with a known sourcePageId and transclusionId pair because the lookup does not enforce private space membership before resolving the source page. The API can return confidential sync-block content and source page metadata even though the normal page APIs deny access to the same page. This issue is fixed in version 0.90.1.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-639",
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52850.json"
}

References

Affected packages

Git / github.com/docmost/docmost

Affected ranges

Type

GIT

Repo

https://github.com/docmost/docmost

Events

Introduced

Fixed

ef04c22aeadfb82103f1e8c13a746d352e68a5f7

Fixed

830b5b4d458a1302f42c8b68bff9ff559f6eb342

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.90.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "830b5b4d458a1302f42c8b68bff9ff559f6eb342"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v0.90.1",
            "range": [
                {
                    "fixed": "ef04c22aeadfb82103f1e8c13a746d352e68a5f7"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*

0.2.3

v0.*

v0.10.0

v0.10.1

v0.10.2

v0.2.0

v0.2.1

v0.2.10

v0.2.2

v0.2.4

v0.2.5

v0.2.7

v0.2.8

v0.2.9

v0.20.0

v0.20.1

v0.20.2

v0.20.3

v0.20.4

v0.21.0

v0.22.0

v0.22.1

v0.22.2

v0.23.0

v0.23.1

v0.23.2

v0.24.0

v0.24.1

v0.25.0

v0.25.0-beta.1

v0.25.1

v0.25.2

v0.25.3

v0.3.0

v0.3.1

v0.4.0

v0.4.1

v0.5.0

v0.6.0

v0.6.1

v0.6.2

v0.7.0

v0.70.0

v0.70.1

v0.70.2

v0.70.3

v0.71.0

v0.71.1

v0.8.0

v0.8.1

v0.8.2

v0.8.3

v0.8.4

v0.80.1

v0.9.0

v0.90.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52850.json"