Microsoft Edge (Chromium-based): Security feature bypass via incomplete input filter
Summary
Microsoft Edge (Chromium-based) contains a security feature bypass caused by an incomplete list of disallowed inputs (CWE-184). An unauthenticated remote attacker can bypass a browser security feature over the network. Exploitation requires that a user visits a malicious or crafted web page. Microsoft rates the impact as High for confidentiality, integrity and availability.
Affected
- Microsoft Edge (Chromium-based) 1.0.0.0 to before 156.0.4314.50
Fixed in
- Microsoft Edge (Chromium-based) 156.0.4314.50 or later (per third-party trackers; confirm the build number in the MSRC product table)
Workaround
- Unknown. No workaround is documented in the sources reviewed. The fix is the browser update.
Exploitation
- Microsoft SSVC assessment: exploitation none, not automatable, technical impact total.
- Not known to be exploited in the wild; not listed in CISA KEV (per the sources reviewed).
- No public proof-of-concept exploit found.
Our recommendation
- Update Microsoft Edge (Chromium-based) to 156.0.4314.50 or later on all endpoints and verify the running version.
- Confirm the fixed build in the MSRC product table.
- Verify that automatic updates are enabled for Edge.
- Prioritise endpoints that browse the web.
- Recheck MSRC and CISA KEV for status changes.
Information from Microsoft (Patch Tuesday October 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Update Guide: CVE-2026-96196 msrc.microsoft.com
- VulDB entry 427695 vuldb.com
- PSIRT.com: CVE-2026-96196 psirt.com
- Strix AI: CVE-2026-96196 www.strix.ai
- ThreatInt: CVE-2026-96196 cve.threatint.com
- OffSeq Radar: Incomplete list of disallowed inputs in Microsoft Edge radar.offseq.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 09:02.
Original description (NVD)
Incomplete list of disallowed inputs in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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