CVSS 3.1
7.7 highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2026-126862 google chrome: Improper Input Validation
High (7.7) in google chrome. EPSS 0.08% estimated probability of exploitation activity in the next 30 days.
On this page
Improper input validation in Core in Google Chrome on on Android prior to 157.0.8103.78 allowed a local attacker to bypass web origin policy via a co-installed app. (Chromium security severity: High)
Severity
- EPSS
- 0.08% estimated probability of exploitation activity in the next 30 days; 0th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-12. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-20 Improper Input Validation
- OWASP Top 10
- A05:2025 Injection
- Published
- Modified
- Assigned by
- Chrome (CNA)
- NVD analysis
- Analyzed
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Google Chrome | from 157.0.8103.78 before 157.0.8103.78 |
Fix and patched versions
- Vendor advisory: https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12, 13, 14 | chromium | no fix listed | DEBIAN-CVE-2026-126862 |
From the distributions' data via OSV.dev: the Debian Security Tracker. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian.
Red Hat
Red Hat rates this Important.
This vulnerability is rated as Important because a failure in origin verification could enable an attacker to circumvent same-origin boundaries and compromise cross-site confidentiality and integrity without requiring user interaction. However, this flaw targets mobile application interaction models on the Android platform, requiring a locally co-installed program to trigger the defect. Because Red Hat Enterprise Linux desktop environments do not implement the Android application framework, standard deployments are not directly exposed to this attack vector.
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-126862.
Attack patterns (CAPEC)
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-20 (51).
History
- Scored 7.7 high
- Analyzed by the NVD
Changes since this site first stored the record. The same for every record: /api/public/changes.