Is CVE-2026-27125 actively exploited?

No active exploitation of CVE-2026-27125 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27125 be exploited remotely?

Yes. CVE-2026-27125 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27125?

CVE-2026-27125 has a CVSS score of 6.8 (MEDIUM) and an EPSS exploitation probability of 0.07%.

HOME VULNERABILITIESCVE-2026-27125

MEDIUM

CVE-2026-27125

CWE-915Published: February 20, 2026· Updated: Feb 23, 2026

6.8

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:19.8th

Official Description

svelte performance oriented web framework. Prior to 5.51.5, in server-side rendering, attribute spreading on elements (e.g. <div {...attrs}>) enumerates inherited properties from the object's prototype chain rather than only own properties. In environments where Object.prototype has already been polluted — a precondition outside of Svelte's control — this can cause unexpected attributes to appear in SSR output or cause SSR to throw errors. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5.

NVD Source

Technical Analysis

CVE-2026-27125 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 6.8.