Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Network-delivered SSRF requires no attacker privileges, but mandatory user interaction and no scope change or confidentiality loss keep score moderate.
Primary rating from Vendor (microsoft).
CVSS VectorNVD
Lifecycle Timeline
2DescriptionNVD
Server-side request forgery (ssrf) in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
AnalysisAI
Server-side request forgery in Microsoft Edge (Chromium-based) versions before 150.0.4078.48 enables unauthenticated remote attackers to perform network spoofing by inducing the browser to issue forged requests on behalf of a victim. The attack requires user interaction - a victim must visit or interact with attacker-controlled content - after which the browser can be coerced into making unauthorized requests that manipulate resource integrity or availability. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis; a vendor-released patch is available.
Technical ContextAI
CWE-918 (Server-Side Request Forgery) describes a class of vulnerabilities where an application - in this case the browser itself - is manipulated into making HTTP or other protocol requests to attacker-chosen destinations, bypassing normal access controls or trust boundaries. In a Chromium-based browser context, SSRF can arise in features such as content prefetching, service workers, media loading, or URL handlers that issue outbound network requests on behalf of rendered page content. The affected CPE (cpe:2.3:a:microsoft:microsoft_edge_(chromium-based):*:*:*:*:*:*:*:*) spans all Edge Chromium releases from version 1.0.0.0 up to but not including 150.0.4078.48 per EUVD-2026-41581. Because Edge is built on the Chromium engine, underlying Chromium networking code - including Fetch API, XMLHttpRequest, or network service components - may be the root-cause site.
RemediationAI
The primary fix is to upgrade Microsoft Edge (Chromium-based) to version 150.0.4078.48 or later, as confirmed by the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58278 and corroborated by EUVD-2026-41581. Edge typically auto-updates via its built-in update mechanism; administrators managing enterprise deployments should verify the installed version and push the update via Microsoft Endpoint Manager or equivalent. Where immediate patching is not feasible, reducing exposure requires limiting user access to untrusted web content (e.g., restricting browsing to allowlisted sites via enterprise policy), though this has significant usability trade-offs. Disabling specific Edge features such as prefetch or service workers via Group Policy may reduce SSRF attack surface but does not eliminate it and may affect legitimate functionality. No workaround fully substitutes for the vendor-released patch.
Security-feature bypass in Microsoft Edge (Chromium-based) versions prior to 150.0.4078.48 lets a remote, unauthenticate
Remote code execution in Microsoft Edge (Chromium-based) before 151.0.4129.59 allows a network attacker to run arbitrary
Remote code execution via buffer over-read in Microsoft Edge (Chromium-based) versions prior to 151.0.4129.59 affects au
Remote code execution in Microsoft Edge (Chromium-based) prior to version 151.0.4129.59 is achievable by an unauthentica
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free memory corruption flaw (CWE-416) th
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthenticated attacker to run arbitrary code by lur
Remote code execution in Microsoft Edge (Chromium-based) stems from a heap-based buffer overflow (CWE-122) that a networ
Remote code execution in Microsoft Edge (Chromium-based) is enabled by a type confusion vulnerability (CWE-843) that can
Remote code execution in Microsoft Edge (Chromium-based) before version 150.0.4078.48 allows an unauthenticated remote a
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free (CWE-416) memory-corruption flaw th
Remote code execution in Microsoft Edge (Chromium-based) lets an unauthenticated network attacker run arbitrary code by
Remote code execution in Microsoft Edge (Chromium-based) before 150.0.4078.48 allows an unauthenticated attacker to run
Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-41581
GHSA-89m8-6fh5-pgm5