Home/CVE/Insufficient validation of untrusted input in Updater in Google Chrome on Mac prior to 148.0.7778.96 allowed a local att
CVE

CVE-2026-7997

Insufficient validation of untrusted input in Updater in Google Chrome on Mac prior to 148.0.7778.96 allowed a local att

Insufficient validation of untrusted input in Updater in Google Chrome on Mac prior to 148.0.7778.96 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Low)

HIGH · CVSS 7.8 EPSS 0.0001
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules10 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

1
google chrome< 148.0.7778.96
◈

Sigma Hunt Rules

10
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · chrome-cve-admin@google.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 May 2026 · 07:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

4
suse-csafopenSUSE-SU-2026:10778-1
suse-csafopenSUSE-SU-2026:20727-1
msrcCVE-2026-7997
chrome-releasesCHROME-tag:blogger.com,
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.htmlVendor Advisory
https://issues.chromium.org/issues/487960705Issue TrackingPermissions Required
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