CVE catalog
CVE-2026-34767
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.3, 40.8.3, and 41.0.3, apps that register custom protocol handler
- Severity
- Medium · CVSS 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.21% · Oct 27, 2026
A flaw was found in Electron, a framework used for developing cross-platform desktop applications. This vulnerability, known as HTTP response header injection, occurs when an application reflects attacker-controlled input into a response header. A remote attacker could exploit this to inject additional response headers, potentially compromising security controls like cookies, content security policy, or cross-origin access controls. This could lead to unauthorized data access or manipulation within affected applications. Apps that do not reflect external input into response headers are not affected. electron: Electron: HTTP Response Header Injection via attacker-controlled input The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | electron | Not reported | 38.8.6 | fixed |
| Cpe | electron | Not reported | 39.8.3 | fixed |
| Cpe | electron | Not reported | 40.8.3 | fixed |
| Cpe | electron | Not reported | 41.0.3 | fixed |
| Npm | electron | Not reported | 38.8.6 | fixed |
| Npm | electron | Not reported | 39.8.3 | fixed |
| Npm | electron | Not reported | 40.8.3 | fixed |
| Npm | electron | Not reported | 41.0.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | electron | cpe | Not reported | 38.8.6 | Not reported | Not reported | Not reported |
| Cpe | electron | cpe | Not reported | 39.8.3 | Not reported | Not reported | Not reported |
| Cpe | electron | cpe | Not reported | 40.8.3 | Not reported | Not reported | Not reported |
| Cpe | electron | cpe | Not reported | 41.0.3 | Not reported | Not reported | Not reported |
| Npm | electron | npm | Not reported | 38.8.6 | Not reported | Not reported | Not reported |
| Npm | electron | npm | Not reported | 39.8.3 | Not reported | Not reported | Not reported |
| Npm | electron | npm | Not reported | 40.8.3 | Not reported | Not reported | Not reported |
| Npm | electron | npm | Not reported | 41.0.3 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-34767]
- [https://osv.dev/vulnerability/GHSA-4p4r-m79c-wq3v]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34767.json]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]