CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NCVE-2026-126878 google chrome
Medium (4.3) in google chrome. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.
On this page
Information leak in Core in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Severity
- EPSS
- 0.2% estimated probability of exploitation activity in the next 30 days; 12th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- OWASP Top 10
- A01:2025 Broken Access Control
- Published
- Modified
- Assigned by
- Chrome (CNA)
- NVD analysis
- Analyzed
- Record from
- the NVD, synced
Ask an AI about this CVE
Show the prompt
Explain CVE-2026-126878 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-126878?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-126878?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-126878 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Badge for a README or a site
An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:
[](https://cve.bz/cve/CVE-2026-126878)
HTML:
<a href="https://cve.bz/cve/CVE-2026-126878"><img src="https://cve.bz/cve/badge/CVE-2026-126878.svg" alt="CVE-2026-126878"></a>
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-2026-126878 |
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.
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-200 (59).
History
- Scored 4.3 medium
- Analyzed by the NVD
Changes since this site first stored the record. The same for every record: /api/public/changes.