# CVE-2026-15128 — Google Chrome

> As of 2026-07-09, CVE-2026-15128 is a MEDIUM-severity vulnerability in Google Chrome, CVSS v3.1 6.1, EPSS 0.2% (11.5th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-15128, most recently “Google Chrome 150.0.7871.114/.115 Patches 27 Vulnerabilities Including Two Critical Use-After-Free Flaws (CVE-2026-15112, CVE-2026-15129)”.

**Last updated:** 2026-07-09

## What is CVE-2026-15128?

Inappropriate implementation in Forms in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: High)

The record classifies CVE-2026-15128 under weakness class [CWE-79](https://intel.threadlinqs.com/cwe/CWE-79). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 112 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.1 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 11.5% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-08, last modified 2026-07-09

## Is CVE-2026-15128 being exploited?

Weaponised exploit code for CVE-2026-15128 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 22 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2026/CVE-2026-15128.md) (trickest)

## Affected products and versions

- [Google](https://intel.threadlinqs.com/vendors/google): Chrome

## How to fix CVE-2026-15128

Vendor advisory: [https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_01162222768.html](https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_01162222768.html). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-15128

1 tracked threat in the Threadlinqs corpus references CVE-2026-15128, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Google Chrome 150.0.7871.114/.115 Patches 27 Vulnerabilities Including Two Critical Use-After-Free Flaws (CVE-2026-15112, CVE-2026-15129)](https://intel.threadlinqs.com/threat/TL-2026-1173) — HIGH · 2026-07-10

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [chromereleases.googleblog.com](https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_01162222768.html)
- [issues.chromium.org](https://issues.chromium.org/issues/523756329)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-15128
Full detection coverage and IOCs for threats exploiting CVE-2026-15128 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp