Process termination via ignored Brotli backpressure
Published Mar 19, 2024 · Updated Nov 4, 2025
Denial of service in affected Node.js releases allows attackers controlling an untrusted fetched URL to exhaust process memory. The zlib Brotli decoder processCallback path ignores a false return from stream push(), continues producing output after backpressure, and grows buffered decoded data without bound. Exploitation requires an application to call fetch() on an attacker-controlled URL; memory exhaustion can terminate the Node.js process, while confidentiality and integrity remain unaffected.
Summary
What happened
Denial of service in affected Node.js releases allows attackers controlling an untrusted fetched URL to exhaust process memory. The zlib Brotli decoder processCallback path ignores a false return from stream push(), continues producing output after backpressure, and grows buffered decoded data without bound. Exploitation requires an application to call fetch() on an attacker-controlled URL; memory exhaustion can terminate the Node.js process, while confidentiality and integrity remain unaffected.
The record
- CVE
- CVE-2024-22025
- Published
- Mar 19, 2024
- Updated
- Nov 4, 2025
- Vendor
- Node.js
- Product
- Node.js
- Classifications
- CWE-404, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 19, 2024CVE publishedPublication date reported by the CVE source.
- Nov 4, 2025Record 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=10.0 <10.*
- Affected versionversion=11.0 <11.*
- Affected versionversion=12.0 <12.*
- Affected versionversion=13.0 <13.*
- Affected versionversion=14.0 <14.*
- Affected versionversion=15.0 <15.*
- Affected versionversion=16.0 <16.*
- Affected versionversion=17.0 <17.*
- Affected versionversion=18.0 <18.19.1
- Affected versionversion=19.0 <19.*
- Affected versionversion=20.0 <20.11.1
- Affected versionversion=21.0 <21.6.2
- Affected versionversion=4.0 <4.*
- Affected versionversion=5.0 <5.*
- Affected versionversion=6.0 <6.*
- Affected versionversion=7.0 <7.*
- Affected versionversion=8.0 <8.*
- Affected versionversion=9.0 <9.*
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
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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