RCE in Sanjevirau Gsubs
CVE-2026-90491
A weakness has been identified in sanjevirau gsubs up to 1.0.3. Impacted is the function showQuerySuccessPage of the file renderer/index.js of the component Electron. Executing a manipulation of the argument filename can lead to code injection. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (36.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Sanjevirau Gsubs — versions 1.0.0, 1.0.1, 1.0.2
Weakness classification (CWE)
References
- vuldb.com/vuln/403079 (technical-description, vdb-entry)
- vuldb.com/vuln/403079/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90491 (third-party-advisory)
- vuldb.com/submit/891691 (third-party-advisory)
- github.com/LeoWSY-hashblue/cve-electron-2/blob/master/gsubs/cve.md (related)
- github.com/LeoWSY-hashblue/cve-electron-2/tree/master/gsubs/poc (exploit)
Frequently asked questions
- What is CVE-2026-90491?
- CVE-2026-90491 is a medium-severity vulnerability in Sanjevirau Gsubs, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-09-13.
- How severe is CVE-2026-90491?
- Medium severity. CVSS v3 base score is 6.3 out of 10.