Cross-origin response-size disclosure via aborted fetch
Published Jul 22, 2022 · Updated Aug 2, 2024
Information disclosure in Google Chrome before 100.0.4896.60 allows remote attackers to leak cross-origin data through crafted HTML. The Background Fetch API leaves an aborted cross-origin request recorded as in progress, exposing response-size metadata that the page can observe. Exploitation requires a user to load attacker-controlled HTML; the leak reveals cross-origin response sizes rather than response contents.
Summary
What happened
Information disclosure in Google Chrome before 100.0.4896.60 allows remote attackers to leak cross-origin data through crafted HTML. The Background Fetch API leaves an aborted cross-origin request recorded as in progress, exposing response-size metadata that the page can observe. Exploitation requires a user to load attacker-controlled HTML; the leak reveals cross-origin response sizes rather than response contents.
The record
- CVE
- CVE-2022-1139
- Published
- Jul 22, 2022
- Updated
- Aug 2, 2024
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 22, 2022CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record 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=unspecified <100.0.4896.60
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Chromium Background Fetch response-size leak reproductionproof of concept · unverified
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Technologies
Your stack
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Your stack
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