Heap corruption via Network use-after-free
Published Jun 11, 2026 · Updated Jun 11, 2026
Use after free in Google Chrome's Network component before 149.0.7827.115 allows man-in-the-middle attackers to trigger heap corruption. Google has not disclosed the affected object, lifetime error, or network-message processing path because the Chromium issue remains restricted. Exploitation requires a privileged network position and malicious network traffic; the published record establishes heap corruption but not a specific code-execution outcome.
Summary
What happened
Use after free in Google Chrome's Network component before 149.0.7827.115 allows man-in-the-middle attackers to trigger heap corruption. Google has not disclosed the affected object, lifetime error, or network-message processing path because the Chromium issue remains restricted. Exploitation requires a privileged network position and malicious network traffic; the published record establishes heap corruption but not a specific code-execution outcome.
The record
- CVE
- CVE-2026-12012
- Published
- Jun 11, 2026
- Updated
- Jun 11, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-416, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 11, 2026CVE publishedPublication date reported by the CVE source.
- Jun 11, 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.
- Affected versionversion=149.0.7827.115 <149.0.7827.115
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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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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