CVE-2026-21853

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Source
https://cve.org/CVERecord?id=CVE-2026-21853
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21853.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-21853
Aliases
  • GHSA-67vm-2mcj-8965
Published
2026-03-02T18:55:04.978Z
Modified
2026-03-03T02:56:06.221825Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
AFFiNE: One-click Remote Code Execution through Custom URL Handling
Details

AFFiNE is an open-source, all-in-one workspace and an operating system. Prior to version 0.25.4, there is a one-click remote code execution vulnerability. This vulnerability can be exploited by embedding a specially crafted affine: URL on a website. An attacker can trigger the vulnerability in two common scenarios: 1/ A victim visits a malicious website controlled by the attacker and the website redirect to the URL automatically, or 2/ A victim clicks on a crafted link embedded on a legitimate website (e.g., in user-generated content). In both cases, the browser invokes AFFiNE custom URL handler, which launches the AFFiNE app and processes the crafted URL. This results in arbitrary code execution on the victim’s machine, without further interaction. This issue has been patched in version 0.25.4.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21853.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-94"
    ]
}
References

Affected packages

Git / github.com/toeverything/affine

Affected ranges

Type
GIT
Repo
https://github.com/toeverything/affine
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6ec1948f62cbc3eb165ef63a300b4d2e48be62c6
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.25.4"
        }
    ]
}

Affected versions

0.*
0.10.0-canary.14
0.10.3-canary.2
0.11.0-nightly-202312280901-e11e827
0.15.5
0.19.0-canary.1
0.23.0-beta.10
0.23.0-beta.11
0.23.0-beta.13
0.23.0-beta.14
0.23.0-beta.15
0.23.0-beta.16
0.23.0-beta.17
0.23.0-beta.2
0.23.0-beta.3
0.23.0-beta.7
0.23.0-beta.8
0.5.0
0.5.0-canary.0
0.5.1
0.6.0-canary.5
0.9.0-beta.0
0.9.0-beta.1
v0.*
v0.0.1-alpha-Abbey-Wood
v0.0.1-alpha.0.3.4
v0.0.1-alpha.0.4.1
v0.0.2-2023.04.08-alpha-kreta-ayer
v0.10.0-canary.1
v0.10.0-canary.10
v0.10.0-canary.16
v0.10.0-canary.2
v0.10.0-canary.3
v0.10.0-canary.4
v0.10.0-canary.5
v0.10.0-canary.6
v0.10.0-canary.8
v0.10.0-canary.9
v0.10.3-canary.0
v0.10.3-canary.1
v0.11.0-canary.10
v0.11.0-canary.8
v0.11.0-canary.9
v0.11.1-canary.1
v0.11.3-canary.0
v0.11.3-canary.1
v0.11.3-canary.2
v0.11.3-canary.3
v0.11.3-canary.4
v0.11.3-canary.5
v0.11.3-canary.6
v0.11.3-canary.7
v0.11.3-canary.8
v0.12.0-canary.0
v0.12.0-canary.1
v0.13.0-beta.0
v0.13.0-canary.0
v0.13.0-canary.1
v0.13.0-canary.2
v0.13.0-canary.3
v0.13.0-canary.4
v0.13.0-canary.5
v0.13.0-canary.6
v0.13.0-canary.7
v0.14.0-beta.0
v0.14.0-canary.0
v0.14.0-canary.1
v0.14.0-canary.10
v0.14.0-canary.11
v0.14.0-canary.12
v0.14.0-canary.13
v0.14.0-canary.14
v0.14.0-canary.2
v0.14.0-canary.3
v0.14.0-canary.4
v0.14.0-canary.5
v0.14.0-canary.6
v0.14.0-canary.7
v0.14.0-canary.8
v0.14.0-canary.9
v0.14.1
v0.14.2
v0.14.3
v0.14.4
v0.14.5
v0.14.6
v0.14.7
v0.14.8
v0.14.9
v0.15.0
v0.15.0-beta.0
v0.15.0-beta.1
v0.15.0-beta.10
v0.15.0-beta.11
v0.15.0-beta.12
v0.15.0-beta.13
v0.15.0-beta.14
v0.15.0-beta.15
v0.15.0-beta.16
v0.15.0-beta.17
v0.15.0-beta.2
v0.15.0-beta.3
v0.15.0-beta.4
v0.15.0-beta.5
v0.15.0-beta.6
v0.15.0-beta.7
v0.15.0-beta.8
v0.15.0-beta.9
v0.15.0-canary.0
v0.15.0-canary.1
v0.15.0-canary.10
v0.15.0-canary.11
v0.15.0-canary.12
v0.15.0-canary.13
v0.15.0-canary.14
v0.15.0-canary.15
v0.15.0-canary.16
v0.15.0-canary.17
v0.15.0-canary.18
v0.15.0-canary.19
v0.15.0-canary.2
v0.15.0-canary.20
v0.15.0-canary.21
v0.15.0-canary.22
v0.15.0-canary.23
v0.15.0-canary.3
v0.15.0-canary.4
v0.15.0-canary.5
v0.15.0-canary.6
v0.15.0-canary.7
v0.15.0-canary.8
v0.15.0-canary.9
v0.15.1
v0.15.1-beta.1
v0.15.2
v0.15.2-beta.1
v0.15.2-canary.1
v0.15.2-canary.2
v0.15.3
v0.15.3-beta.1
v0.15.3-beta.2
v0.15.4
v0.15.5
v0.15.5-beta.1
v0.15.6
v0.15.6-beta.1
v0.15.7
v0.15.7-beta.1
v0.16.0
v0.16.0-beta.1
v0.16.0-beta.2
v0.16.0-beta.3
v0.16.0-beta.4
v0.16.0-beta.5
v0.16.0-beta.6
v0.16.0-canary.1
v0.16.0-canary.10
v0.16.0-canary.11
v0.16.0-canary.12
v0.16.0-canary.13
v0.16.0-canary.2
v0.16.0-canary.3
v0.16.0-canary.4
v0.16.0-canary.5
v0.16.0-canary.6
v0.16.0-canary.7
v0.16.0-canary.9
v0.16.1
v0.16.1-beta.1
v0.16.1-beta.2
v0.16.2
v0.16.2-beta.1
v0.16.3
v0.16.3-beta.1
v0.16.3-beta.2
v0.16.3-beta.4
v0.16.4-beta.1
v0.16.4-beta.2
v0.17.0
v0.17.0-beta.1
v0.17.0-beta.2
v0.17.0-beta.3
v0.17.0-beta.4
v0.17.0-beta.5
v0.17.0-beta.6
v0.17.0-beta.7
v0.17.0-canary.1
v0.17.0-canary.10
v0.17.0-canary.11
v0.17.0-canary.12
v0.17.0-canary.13
v0.17.0-canary.2
v0.17.0-canary.3
v0.17.0-canary.4
v0.17.0-canary.5
v0.17.0-canary.6
v0.17.0-canary.7
v0.17.0-canary.8
v0.17.0-canary.9
v0.17.1
v0.17.1-beta.1
v0.17.1-canary.1
v0.17.2
v0.17.2-beta.1
v0.17.2-canary.1
v0.17.2-canary.2
v0.17.3
v0.17.3-beta.1
v0.17.3-canary.1
v0.17.3-canary.2
v0.18.0
v0.18.0-beta.1
v0.18.0-beta.2
v0.18.0-beta.3
v0.18.0-beta.4
v0.18.0-canary.1
v0.18.0-canary.2
v0.18.0-canary.3
v0.18.0-canary.4
v0.18.0-canary.5
v0.18.0-canary.6
v0.18.0-canary.7
v0.18.0-canary.8
v0.18.0-canary.9
v0.18.1
v0.18.1-beta.1
v0.19.0
v0.19.0-beta.1
v0.19.0-beta.2
v0.19.0-canary.1
v0.19.0-canary.10
v0.19.0-canary.11
v0.19.0-canary.12
v0.19.0-canary.2
v0.19.0-canary.3
v0.19.0-canary.4
v0.19.0-canary.5
v0.19.0-canary.6
v0.19.0-canary.7
v0.19.0-canary.8
v0.19.0-canary.9
v0.19.1
v0.19.2
v0.19.2-beta.1
v0.19.3
v0.19.3-beta.1
v0.19.3-canary.1
v0.19.4
v0.19.4-beta.1
v0.20.0
v0.20.0-beta.1
v0.20.0-beta.2
v0.20.0-beta.3
v0.20.0-beta.4
v0.20.0-beta.5
v0.20.0-beta.6
v0.20.0-beta.7
v0.20.0-beta.8
v0.20.0-canary.1
v0.20.0-canary.10
v0.20.0-canary.11
v0.20.0-canary.12
v0.20.0-canary.13
v0.20.0-canary.14
v0.20.0-canary.15
v0.20.0-canary.16
v0.20.0-canary.2
v0.20.0-canary.3
v0.20.0-canary.4
v0.20.0-canary.5
v0.20.0-canary.6
v0.20.0-canary.7
v0.20.0-canary.8
v0.20.0-canary.9
v0.20.1
v0.20.1-beta.1
v0.20.1-beta.2
v0.20.2
v0.20.2-beta.1
v0.20.3
v0.20.3-beta.1
v0.20.3-canary.1
v0.20.3-canary.2
v0.20.5-canary.2
v0.21.0
v0.21.0-beta.1
v0.21.0-beta.2
v0.21.0-beta.3
v0.21.0-beta.4
v0.21.0-canary.1
v0.21.0-canary.10
v0.21.0-canary.11
v0.21.0-canary.12
v0.21.0-canary.13
v0.21.0-canary.14
v0.21.0-canary.2
v0.21.0-canary.3
v0.21.0-canary.4
v0.21.0-canary.5
v0.21.0-canary.6
v0.21.0-canary.7
v0.21.0-canary.8
v0.21.0-canary.9
v0.21.1
v0.21.1-beta.1
v0.21.1-canary.1
v0.21.2
v0.21.2-beta.1
v0.21.2-canary.1
v0.21.3
v0.21.3-beta.1
v0.21.3-canary.1
v0.22.0
v0.22.0-beta.1
v0.22.0-beta.2
v0.22.0-beta.3
v0.22.0-beta.4
v0.22.0-beta.5
v0.22.0-canary.1
v0.22.0-canary.2
v0.22.0-canary.3
v0.22.0-canary.4
v0.22.0-canary.5
v0.22.0-canary.6
v0.22.0-canary.7
v0.22.1
v0.22.2
v0.22.2-beta.1
v0.22.2-canary.1
v0.22.3
v0.22.4
v0.22.4-beta.1
v0.23.0
v0.23.0-beta.1
v0.23.0-beta.10
v0.23.0-beta.11
v0.23.0-beta.13
v0.23.0-beta.14
v0.23.0-beta.15
v0.23.0-beta.16
v0.23.0-beta.17
v0.23.0-beta.2
v0.23.0-beta.3
v0.23.0-beta.4
v0.23.0-beta.5
v0.23.0-beta.7
v0.23.0-beta.8
v0.23.0-beta.9
v0.23.0-canary.1
v0.23.0-canary.2
v0.23.1
v0.23.1-beta.1
v0.23.2
v0.23.2-beta.1
v0.23.2-beta.2
v0.24.0
v0.24.0-beta.1
v0.24.0-beta.2
v0.24.0-beta.3
v0.24.0-beta.4
v0.24.0-beta.5
v0.24.0-beta.6
v0.24.0-beta.7
v0.24.0-beta.8
v0.24.1
v0.24.1-beta.1
v0.24.2
v0.25.0
v0.25.0-beta.0
v0.25.0-beta.1
v0.25.0-beta.2
v0.25.0-beta.3
v0.25.0-beta.4
v0.25.0-beta.5
v0.25.1
v0.25.1-beta.0
v0.25.3
v0.25.3-beta.0
v0.5.0-canary.0
v0.5.1
v0.5.2
v0.5.3
v0.5.4-beta.0
v0.5.4-canary.0
v0.5.4-canary.1
v0.5.4-canary.10
v0.5.4-canary.11
v0.5.4-canary.12
v0.5.4-canary.13
v0.5.4-canary.14
v0.5.4-canary.15
v0.5.4-canary.16
v0.5.4-canary.17
v0.5.4-canary.18
v0.5.4-canary.19
v0.5.4-canary.2
v0.5.4-canary.20
v0.5.4-canary.21
v0.5.4-canary.22
v0.5.4-canary.23
v0.5.4-canary.24
v0.5.4-canary.25
v0.5.4-canary.26
v0.5.4-canary.27
v0.5.4-canary.28
v0.5.4-canary.29
v0.5.4-canary.3
v0.5.4-canary.30
v0.5.4-canary.31
v0.5.4-canary.4
v0.5.4-canary.5
v0.5.4-canary.6
v0.5.4-canary.7
v0.5.4-canary.8
v0.5.4-canary.9
v0.6.0-canary.0
v0.6.0-canary.1
v0.6.0-canary.2
v0.6.0-canary.3
v0.6.0-canary.4
v0.6.0-canary.5
v0.6.0-canary.6
v0.6.0-canary.7
v0.6.0-canary.8
v0.7.0-canary.0
v0.7.0-canary.1
v0.7.0-canary.10
v0.7.0-canary.11
v0.7.0-canary.12
v0.7.0-canary.13
v0.7.0-canary.14
v0.7.0-canary.15
v0.7.0-canary.16
v0.7.0-canary.17
v0.7.0-canary.18
v0.7.0-canary.19
v0.7.0-canary.2
v0.7.0-canary.20
v0.7.0-canary.22
v0.7.0-canary.23
v0.7.0-canary.24
v0.7.0-canary.25
v0.7.0-canary.26
v0.7.0-canary.27
v0.7.0-canary.28
v0.7.0-canary.29
v0.7.0-canary.3
v0.7.0-canary.30
v0.7.0-canary.31
v0.7.0-canary.32
v0.7.0-canary.33
v0.7.0-canary.34
v0.7.0-canary.35
v0.7.0-canary.36
v0.7.0-canary.37
v0.7.0-canary.38
v0.7.0-canary.39
v0.7.0-canary.4
v0.7.0-canary.40
v0.7.0-canary.41
v0.7.0-canary.42
v0.7.0-canary.43
v0.7.0-canary.44
v0.7.0-canary.45
v0.7.0-canary.46
v0.7.0-canary.47
v0.7.0-canary.48
v0.7.0-canary.49
v0.7.0-canary.5
v0.7.0-canary.50
v0.7.0-canary.51
v0.7.0-canary.52
v0.7.0-canary.53
v0.7.0-canary.54
v0.7.0-canary.55
v0.7.0-canary.56
v0.7.0-canary.57
v0.7.0-canary.58
v0.7.0-canary.59
v0.7.0-canary.6
v0.7.0-canary.7
v0.7.0-canary.8
v0.7.0-canary.9
v0.8.0-canary.0
v0.8.0-canary.1
v0.8.0-canary.10
v0.8.0-canary.11
v0.8.0-canary.12
v0.8.0-canary.13
v0.8.0-canary.14
v0.8.0-canary.15
v0.8.0-canary.16
v0.8.0-canary.17
v0.8.0-canary.18
v0.8.0-canary.19
v0.8.0-canary.2
v0.8.0-canary.20
v0.8.0-canary.21
v0.8.0-canary.22
v0.8.0-canary.23
v0.8.0-canary.24
v0.8.0-canary.25
v0.8.0-canary.26
v0.8.0-canary.27
v0.8.0-canary.28
v0.8.0-canary.29
v0.8.0-canary.3
v0.8.0-canary.30
v0.8.0-canary.31
v0.8.0-canary.32
v0.8.0-canary.33
v0.8.0-canary.34
v0.8.0-canary.4
v0.8.0-canary.5
v0.8.0-canary.6
v0.8.0-canary.7
v0.8.0-canary.8
v0.8.0-canary.9
v0.9.0-beta.2
v0.9.0-canary.0
v0.9.0-canary.1
v0.9.0-canary.10
v0.9.0-canary.11
v0.9.0-canary.12
v0.9.0-canary.13
v0.9.0-canary.2
v0.9.0-canary.3
v0.9.0-canary.5
v0.9.0-canary.6
v0.9.0-canary.7
v0.9.0-canary.8
v0.9.0-canary.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-21853.json"