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
2026-09-26T03:46:04Z
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
0 Unknown introduced commit / All previous commits are affected
Fixed
830b5b4d458a1302f42c8b68bff9ff559f6eb342
Fixed
ef04c22aeadfb82103f1e8c13a746d352e68a5f7
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "0.90.1"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

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"