{"cve":"CVE-2025-58057","nvd":{"published":"2025-09-04T10:42:32.180","modified":"2026-10-19T17:10:00.173","status":"Analyzed","description":"Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In netty-codec-compression versions 4.1.124.Final and below, and netty-codec versions 4.2.4.Final and below, when supplied with specially crafted input, BrotliDecoder and certain other decompression decoders will allocate a large number of reachable byte buffers, which can lead to denial of service. BrotliDecoder.decompress has no limit in how often it calls pull, decompressing data 64K bytes at a time. The buffers are saved in the output list, and remain reachable until OOM is hit. This is fixed in versions 4.1.125.Final of netty-codec and 4.2.5.Final of netty-codec-compression.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-409"],"references":["https://github.com/netty/netty/commit/9d804c54ce962408ae6418255a83a13924f7145d","https://github.com/netty/netty/security/advisories/GHSA-3p8m-j85q-pgmj"],"products":["netty:netty"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2025-58057","score":0.00631,"percentile":0.49944,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-3p8m-j85q-pgmj","url":"https://osv.dev/vulnerability/GHSA-3p8m-j85q-pgmj","summary":"Netty's decoders vulnerable to DoS via zip bomb style attack","modified":"2026-09-10T03:50:27.942019467Z","packages":[{"ecosystem":"Maven","name":"io.netty:netty-codec-compression","purl":"pkg:maven/io.netty/netty-codec-compression","ranges":[">=4.2.0.Alpha1 <4.2.5.Final"],"fixed":["4.2.5.Final"]},{"ecosystem":"Maven","name":"io.netty:netty-codec","purl":"pkg:maven/io.netty/netty-codec","ranges":["<4.1.125.Final"],"fixed":["4.1.125.Final"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}