CVE-2026-15810 | A Cross-Site Scripting (XSS) vulnerability in Google Cloud L… | CVSS 8.7 HIGH

Description

A Cross-Site Scripting (XSS) vulnerability in Google Cloud Looker versions prior to 25.6.103, 25.12.65, 25.18.68, 26.0.66, 26.2.47, 26.4.36, 26.6.28, and 26.8.7 on Looker-hosted and Self-hosted allows an attacker to execute arbitrary JavaScript leading to administrative account takeover using a maliciously crafted URL. Looker-hosted and Self-hosted were found to be vulnerable. This issue has already been mitigated for Looker-hosted instances. No user action is required for these. Self-hosted instances must be upgraded to the patched versions: 25.6.103+, 25.12.65+, 25.18.68+, 26.0.66+, 26.2.47+, 26.4.36+, 26.6.28+, or 26.8.7+.

Metadata

CVE ID: CVE-2026-15810
State: PUBLISHED
Assigner: GoogleCloud
Reserved: 2026-07-15 10:03 UTC
Published: 2026-07-24 11:04 UTC
Last updated: 2026-07-24 12:35 UTC
Primary CWE: CWE-79
CWE-79 Improper Neutralization of Input During Web Page Gene…
Vendor / Product: Google Cloud / Looker
Sources: cve.org · NVD

Severity & Metrics

8.7 HIGH CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (2)

Vendor	Product	Platform	Versions
Google Cloud	Looker	Looker-hosted	0 < 25.6.103, 0 < 25.12.65, 0 < 25.18.68, 0 < 26.0.66 …
Google Cloud	Looker	Self-hosted	0 < 25.6.103, 0 < 25.12.65, 0 < 25.18.68, 0 < 26.0.66 …

Weakness (CWE)

CWE	Source	Description
CWE-79	cna	CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.7	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber

References (2)