AFFiNE: Open Redirect via Regex Bypass in redirect-proxy
Priority MEDIUM 64CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00202 10th percentileScored 2026-11-07
Fix Fixed AFFiNE (toeverything): 0.26.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| toeverything | AFFiNE | before 0.26.0 | 0.26.0 | Patch available | CNA |
- AFFiNE Vendortoeverything Affected before 0.26.0 Fixed in 0.26.0 Patch available CNA
Remediation
- Fix · CNA AFFiNE (toeverything) Fixed in 0.26.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-25477
References
More toeverything vulnerabilities
- TI-2026-06784 toeverything AFFiNE Public Markdown Preview Endpoint :docId allowDocPreview authorization CVSS 4.0MEDIUM 6.9
- TI-2025-10952 toeverything AFFiNE Avatar Upload Image Endpoint cross site scripting CVSS 4.0MEDIUM 5.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences