CVE-2026-10977Network attack vector

Cross-origin data disclosure via uninitialized Skia use

Published Jun 4, 2026 · Updated Jun 4, 2026

Uninitialized use in Skia in Google Chrome before 149.0.7827.53 allows remote attackers to leak cross-origin data via crafted HTML. The public record identifies Skia as the locus but does not disclose which value is used before initialization or which rendering path exposes it. A renderer process must already be compromised, and the bounded consequence is disclosure of another origin's data rather than code execution or data modification.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uninitialized use in Skia in Google Chrome before 149.0.7827.53 allows remote attackers to leak cross-origin data via crafted HTML. The public record identifies Skia as the locus but does not disclose which value is used before initialization or which rendering path exposes it. A renderer process must already be compromised, and the bounded consequence is disclosure of another origin's data rather than code execution or data modification.

The record

CVE
CVE-2026-10977
Published
Jun 4, 2026
Updated
Jun 4, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-457
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=149.0.7827.53 <149.0.7827.53

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=149.0.7827.53 <149.0.7827.53

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-457Use of Uninitialized Variable

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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