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Google CloudCVE-2026-15810

Google Cloud Looker: cross-site scripting

High8.7CVE-2026-15810 · Published Jul 24, 2026 · updated Jul 27, 2026

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+.

Google Cloud advisory

Affected versions

PackageAffectedFixed in
Looker
Product
< 25.6.10325.6.103
< 25.12.6525.12.65
< 25.18.6825.18.68
< 26.0.6626.0.66
< 25.6.10325.6.103
< 25.12.6525.12.65
< 25.18.6825.18.68
< 26.0.6626.0.66
Details and references
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-79

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