toeverything AFFiNE up to 0.25.x Regular Expression /redirect-proxy

Summaryinfo

A vulnerability was found in toeverything AFFiNE up to 0.25.x. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /redirect-proxy of the component Regular Expression Handler. The manipulation results in redirect. This vulnerability is known as CVE-2026-25477. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in toeverything AFFiNE up to 0.25.x. Affected is some unknown processing of the file /redirect-proxy of the component Regular Expression Handler. The manipulation with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on integrity. CVE summarizes:

AFFiNE is an open-source, all-in-one workspace and an operating system. Prior to version 0.26.0, there is an Open Redirect vulnerability located at the /redirect-proxy endpoint. The flaw exists in the domain validation logic, where an improperly anchored Regular Expression allows an attacker to bypass the whitelist by using malicious domains that end with a trusted string. This issue has been patched in version 0.26.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-25477 since 02/02/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1204.001.

Upgrading to version 0.26.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-9258). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• toeverything

Name

• AFFiNE

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25

Website

• Product: https://github.com/toeverything/AFFiNE/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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