nheko vulnerable to secret poisoning using MITM on secret requests by the homeserver
Priority MEDIUM 45CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass, Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287 and CWE-295.
Summary
nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00816 57th percentileScored 2026-11-07
Fix Fixed nheko (Nheko-Reborn): 0.10.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| Nheko-Reborn | nheko | before 0.10.2 | 0.10.2 | Patch available | CNA |
- nheko VendorNheko-Reborn Affected before 0.10.2 Fixed in 0.10.2 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nheko-reborn:nheko:*:*:*:*:*:*:*:* | before 0.10.2 | Vulnerable | Nheko-Reborn |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* | 37 | Vulnerable | Fedoraproject |
- cpe:2.3:a:nheko-reborn:nheko:*:*:*:*:*:*:*:* Versions before 0.10.2 Vulnerable ·Nheko-Reborn
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
Remediation
- Fix · CNA nheko (Nheko-Reborn) Fixed in 0.10.2
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2022-39264
References
Sources
- CVE-2022-39264 · CVE Program
- CVE-2022-39264 · NVD
- FIRST EPSS
- CVE-2022-39264 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences