{"cve":"CVE-2024-36121","nvd":{"published":"2024-06-04T22:15:10.490","modified":"2026-06-17T07:36:08.850","status":"Modified","description":"netty-incubator-codec-ohttp is the OHTTP implementation for netty. BoringSSLAEADContext keeps track of how many OHTTP responses have been sent and uses this sequence number to calculate the appropriate nonce to use with the encryption algorithm. Unfortunately, two separate errors combine which would allow an attacker to cause the sequence number to overflow and thus the nonce to repeat.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1},"cwes":["CWE-190","CWE-200","CWE-323"],"references":["https://github.com/netty/netty-incubator-codec-ohttp/blob/1ddadb6473cd3be5491d114431ed4c1a9f316001/codec-ohttp-hpke-classes-boringssl/src/main/java/io/netty/incubator/codec/hpke/boringssl/BoringSSLAEADContext.java#L112-L114","https://github.com/netty/netty-incubator-codec-ohttp/security/advisories/GHSA-g762-h86w-8749","https://github.com/netty/netty-incubator-codec-ohttp/blob/1ddadb6473cd3be5491d114431ed4c1a9f316001/codec-ohttp-hpke-classes-boringssl/src/main/java/io/netty/incubator/codec/hpke/boringssl/BoringSSLAEADContext.java#L112-L114","https://github.com/netty/netty-incubator-codec-ohttp/security/advisories/GHSA-g762-h86w-8749"],"products":["netty:netty-incubator-codec-ohttp"],"source":"nvd","synced_at":"2026-10-19T21:51:20.603330631+00:00"},"epss":{"cve":"CVE-2024-36121","score":0.00269,"percentile":0.1906,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g762-h86w-8749","url":"https://osv.dev/vulnerability/GHSA-g762-h86w-8749","summary":"BoringSSLAEADContext in Netty Repeats Nonces","modified":"2026-09-10T03:50:15.335073660Z","packages":[{"ecosystem":"Maven","name":"io.netty.incubator:netty-incubator-codec-ohttp","purl":"pkg:maven/io.netty.incubator/netty-incubator-codec-ohttp","ranges":[">=0.0.3.Final <0.0.11.Final"],"fixed":["0.0.11.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."]}