πŸ›‘οΈ CVE-2026-21853
🟠 CVSS 8.8 β€” High ⚠️ Exploit Public CWE-94 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-94
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-02
Updated 2026-06-02
Modified 2026-04-20

Affected Packages

Software From version Fixed in
affine β€” 0.25.4

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