7.5
CVE-2026-42587
- EPSS 0.04%
- Veröffentlicht 13.05.2026 18:22:21
- Zuletzt bearbeitet 14.05.2026 16:21:02
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
Netty: HttpContentDecompressor maxAllocation bypass via Content-Encoding: br/zstd/snappy enables decompression bomb DoS
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate encodings via ZlibDecoder, but is silently ignored when the content encoding is br (Brotli), zstd, or snappy. An attacker can bypass the configured decompression limit by sending a compressed payload with Content-Encoding: br instead of Content-Encoding: gzip, causing unbounded memory allocation and out-of-memory denial of service. The same vulnerability exists in DelegatingDecompressorFrameListener for HTTP/2 connections. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellernetty
≫
Produkt
netty
Version
>= 4.2.0.Alpha1, < 4.2.13.Final
Status
affected
Version
< 4.1.133.Final
Status
affected
Herstellerio.netty
≫
Produkt
netty-codec-http
Version
>= 4.2.0.Alpha1, < 4.2.13.Final
Status
affected
Version
< 4.1.133.Final
Status
affected
Herstellerio.netty
≫
Produkt
netty-codec-http2
Version
>= 4.2.0.Alpha1, < 4.2.13.Final
Status
affected
Version
< 4.1.133.Final
Status
affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. 
Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.04% | 0.121 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| security-advisories@github.com | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
CWE-400 Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.