{"cve":"CVE-2021-37137","nvd":{"published":"2021-10-19T15:15:07.757","modified":"2026-10-08T22:17:10.853","status":"Modified","description":"The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.","cvss_v4":null,"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-400"],"references":["https://github.com/netty/netty/security/advisories/GHSA-9vjp-v76f-g363","https://lists.apache.org/thread.html/r06a145c9bd41a7344da242cef07977b24abe3349161ede948e30913d%40%3Ccommits.druid.apache.org%3E","https://lists.apache.org/thread.html/r5406eaf3b07577d233b9f07cfc8f26e28369e6bab5edfcab41f28abb%40%3Ccommits.druid.apache.org%3E","https://lists.apache.org/thread.html/r5e05eba32476c580412f9fbdfc9b8782d5b40558018ac4ac07192a04%40%3Ccommits.druid.apache.org%3E","https://lists.apache.org/thread.html/r75490c61c2cb7b6ae2c81238fd52ae13636c60435abcd732d41531a0%40%3Ccommits.druid.apache.org%3E"],"products":["debian:debian_linux","netapp:oncommand_insight","netty:netty","oracle:banking_apis","oracle:banking_digital_experience","oracle:commerce_guided_search","oracle:communications_brm_-_elastic_charging_engine","oracle:communications_cloud_native_core_binding_support_function","oracle:communications_diameter_signaling_router","oracle:peoplesoft_enterprise_peopletools","oracle:webcenter_portal","quarkus:quarkus"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-37137","score":0.06565,"percentile":0.93771,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-9vjp-v76f-g363","url":"https://osv.dev/vulnerability/GHSA-9vjp-v76f-g363","summary":" SnappyFrameDecoder doesn't restrict chunk length any may buffer skippable chunks in an unnecessary way","modified":"2026-07-08T06:27:59.313512567Z","packages":[{"ecosystem":"Maven","name":"io.netty:netty-codec","purl":"pkg:maven/io.netty/netty-codec","ranges":[">=4.0.0 <4.1.68.Final"],"fixed":["4.1.68.Final"]},{"ecosystem":"Maven","name":"org.jboss.netty:netty","purl":"pkg:maven/org.jboss.netty/netty","ranges":["all versions"],"fixed":[]},{"ecosystem":"Maven","name":"io.netty:netty","purl":"pkg:maven/io.netty/netty","ranges":["all versions"],"fixed":[]}]}],"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."]}