{"answers":{"affected":"4 open source packages ship an affected version, including io.netty:netty-handler. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-50010 in the wild and no public exploit code.","fix":"Upgrade io.netty:netty-handler to a fixed version for your release line: 4.1.135.Final or 4.2.15.Final.","what":"CVE-2026-50010 is a high-severity vulnerability in Netty Netty, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-50010 and fix it if it is affected.\n\nWhat it is: CVE-2026-50010 is a high-severity vulnerability in Netty Netty, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-50010 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- io.netty:netty-handler (Maven): affected all versions; fixed in 4.1.135.Final\n- io.netty:netty-handler (Maven): affected all versions; fixed in 4.1.135.Final\n- io.netty:netty-handler (Maven): affected from 4.2.0.Final; fixed in 4.2.15.Final\n- io.netty:netty-handler (Maven): affected from 4.2.0.Final; fixed in 4.2.15.Final\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-50010/ (Markdown: https://insights.sbomify.com/CVE-2026-50010/index.md)","id":"CVE-2026-50010","markdown":"https://insights.sbomify.com/CVE-2026-50010/index.md","name":"CVE-2026-50010","record":{"aliases":["CLEANSTART-2026-FZ21134","CLEANSTART-2026-LR71963","CLEANSTART-2026-ND17109","CLEANSTART-2026-NN05980","CLEANSTART-2026-ZY02566","DEBIAN-CVE-2026-50010","ECHO-c1d7-eaa7-0b03","GHSA-c653-97m9-rcg9","MINI-22j9-gp82-fjc7","MINI-2923-w4wm-cff5","MINI-296q-rxfr-gw5p","MINI-2cmj-66g5-6hq9","MINI-2frj-45vw-f2m4","MINI-2v4x-29wp-8xhm","MINI-33q7-xqfq-q6gg","MINI-34r3-78fq-9qc6","MINI-35f2-4mpr-8wxp","MINI-38mc-445g-35wm","MINI-3g7w-4c9j-9jg8","MINI-3vfr-762m-w82v","MINI-3vqj-cfpf-mpc3","MINI-42rc-w8vw-965p","MINI-45p2-52gj-rxw4","MINI-47hq-568g-qr49","MINI-48f9-c57j-hwqj","MINI-48qq-8vf3-p938","MINI-497j-j2h8-9cr2","MINI-4j5m-c866-hmc2","MINI-529m-cmp7-49w4","MINI-569v-q2c4-2cmc","MINI-5c58-cf6x-fv64","MINI-5hhp-wg2c-254x","MINI-5hq2-26h2-v7c3","MINI-5jx9-wr3m-3cpg","MINI-5pq5-pcgw-9rq8","MINI-5rp3-g7xc-jcc7","MINI-5wm2-gpqh-998r","MINI-5xcw-6v8h-w7fm","MINI-64m4-23x2-cjpx","MINI-65c8-wp6w-vg26","MINI-65qx-9cmm-q94h","MINI-679q-p55q-7578","MINI-6jfq-27jj-38m6","MINI-6pfm-qxjq-356f","MINI-6w8q-w9m9-8j7f","MINI-72cc-477g-gwqq","MINI-79x9-c9p7-pp69","MINI-7pm6-3rqw-c2xm","MINI-86gh-v98w-4cqw","MINI-86pm-j9w3-mh3h","MINI-894w-ph38-mj5x","MINI-89gw-67v3-pmx5","MINI-8q2m-h6ww-w543","MINI-8wqh-hmjc-9jx9","MINI-8x97-q5q9-pmqw","MINI-9599-9533-g4j4","MINI-96r5-mww4-57fv","MINI-9973-hmgf-cvhw","MINI-9rh9-7cf2-7x93","MINI-c439-m53x-978p","MINI-cf5m-hfq4-v866","MINI-cmq8-gwh6-v666","MINI-cpgp-vx9j-q2mv","MINI-cr23-r7mw-67qh","MINI-f8fh-29vp-42hv","MINI-fj9m-6mm8-p6qx","MINI-fjgg-6q45-r7g2","MINI-fjm5-rcgv-2fhj","MINI-fm22-x2ww-6wf6","MINI-fm6r-qhr4-mph5","MINI-g4r7-8pj3-9gr2","MINI-g6xq-7463-p785","MINI-gxgh-49mm-jv34","MINI-h4mj-253q-5882","MINI-h8q5-q7p7-5v8g","MINI-hfpr-m8mw-22vp","MINI-hgw7-pxx9-p6gm","MINI-hmh6-m589-phjv","MINI-hmrf-cr96-7q9q","MINI-hpmc-h8jp-78cx","MINI-j848-m4g3-cfrr","MINI-j92f-qm9f-5x8c","MINI-jc42-x67p-x39g","MINI-jggg-pc58-7xx4","MINI-jrhc-wqcf-6c97","MINI-jv9m-vgvj-2qj6","MINI-jx8c-rxxc-jq23","MINI-m28m-r4h9-cgjj","MINI-m376-jgmv-r87w","MINI-m48v-c62c-775j","MINI-m5c8-6p63-9q3j","MINI-m8h5-8c9q-c9cq","MINI-m9pq-74fh-2vm5","MINI-m9vg-2jh8-2mcr","MINI-mhhr-879m-3r6h","MINI-p46f-xr3q-j7rr","MINI-p4c9-5m22-62r2","MINI-p9hg-2fp6-3h7m","MINI-pf4r-98cf-qvjr","MINI-pj5q-xc6c-j9p3","MINI-pmcx-q5g2-j8w3","MINI-ppqx-255m-4r88","MINI-q5mv-gr8p-xvvh","MINI-qhvw-2vv4-crp2","MINI-qq45-v72g-85x6","MINI-qrp2-pw5j-2xm4","MINI-qvc4-q4w6-89cr","MINI-r642-2pfj-r3qm","MINI-r7j5-m56v-h7q2","MINI-r7j5-mpmr-6mcv","MINI-r82f-w998-mg6w","MINI-rcmf-j72r-rwxx","MINI-rwwf-pw95-gqvp","MINI-v59f-6q2w-jfxr","MINI-v6v5-9pgg-6f22","MINI-v8h6-9282-v9fh","MINI-v99p-xvw9-wmvc","MINI-vgw6-65gq-7562","MINI-vppq-hh63-7ph6","MINI-vqfv-qv68-3qfm","MINI-vqmq-chmv-jxw8","MINI-vqwg-42x8-687m","MINI-vwh6-r63g-9645","MINI-vx6r-j6jq-93qw","MINI-w9f3-hv2p-qq4g","MINI-wjxp-9h8w-f7v7","MINI-wpc2-w2xq-qw4w","MINI-wv85-qvcx-32vh","MINI-xh72-39p4-2pf8","MINI-xhjh-445w-52gw","MINI-xvmh-xpqg-j3p2","MINI-xw48-q3cw-q246","ROOT-APP-MAVEN-CVE-2026-50010","UBUNTU-CVE-2026-50010"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Java network framework","requires_auth":"none","summary":"Netty library bypasses hostname verification when using plain trust managers, allowing man-in-the-middle attacks against TLS connections.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"netty","vendor":"netty"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SimpleTrustManagerFactory.engineGetTrustManagers() and related paths wrap any user-supplied plain X509TrustManager in X509TrustManagerWrapper, which extends X509ExtendedTrustManager but implements the 3-arg checkServerTrusted(chain, authType, SSLEngine) by discarding the SSLEngine and calling the 2-arg delegate. Because the object now IS an X509ExtendedTrustManager, neither SunJSSE's internal AbstractTrustManagerWrapper nor Netty's own OpenSslX509TrustManagerWrapper will re-wrap it to add endpoint-identification. Consequently, even though Netty 4.2 sets endpointIdentificationAlgorithm=\"HTTPS\" by default, a client built with `SslContextBuilder.forClient().trustManager(somePlainX509TrustManager)` performs no hostname verification at all. Versions 4.1.135.Final and 4.2.15.Final patch the issue.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Netty's wrapping plain trust manager silently disables hostname verification","id":"CVE-2026-50010","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"netty:netty","products":["netty:netty"],"type":"security_feature_bypass","year":"2026"},"n_packages":4,"n_references":3,"next":{"headline":"Netty has unbounded pre-allocation in RedisArrayAggregator from RESP array length","id":"CVE-2026-50011"},"packages":[{"ecosystem":"Maven","fixed":["4.1.135.Final"],"introduced":["0"],"last_affected":[],"package":"io.netty:netty-handler","purl":null,"source":"GHSA-c653-97m9-rcg9"},{"ecosystem":"Maven","fixed":["4.1.135.Final"],"introduced":["0"],"last_affected":[],"package":"io.netty:netty-handler","purl":"pkg:maven/io.netty/netty-handler","source":"GHSA-c653-97m9-rcg9"},{"ecosystem":"Maven","fixed":["4.2.15.Final"],"introduced":["4.2.0.Final"],"last_affected":[],"package":"io.netty:netty-handler","purl":null,"source":"GHSA-c653-97m9-rcg9"},{"ecosystem":"Maven","fixed":["4.2.15.Final"],"introduced":["4.2.0.Final"],"last_affected":[],"package":"io.netty:netty-handler","purl":"pkg:maven/io.netty/netty-handler","source":"GHSA-c653-97m9-rcg9"}],"prev":{"headline":"Netty QUIC stateless reset token material exposed through header-visible connection IDs","id":"CVE-2026-50009"},"products":["netty"],"published":"2026-06-12","related":[{"cvss_score":9.1,"headline":"Netty: SNI Routing Bypass via Fragmented TLS ClientHello Causing Fallback to Default SslContext","id":"CVE-2026-75595","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":8.7,"headline":"Netty: Fragmented ClientHello records trigger quadratic pre-handshake reassembly in default SNI parsing","id":"CVE-2026-75596","kev_date_added":null,"published":"2026-08-19"},{"cvss_score":8.7,"headline":"Netty Bzip2Decoder: Infinite Loop in RLE State Machine Leads to Event-Loop Thread Hang","id":"CVE-2026-59901","kev_date_added":null,"published":"2026-07-29"},{"cvss_score":8.7,"headline":"Netty codec-haproxy: Signed-Byte Sentinel Collision in HAProxyMessageDecoder Leads to Unbounded Memory Exhaustion","id":"CVE-2026-55851","kev_date_added":null,"published":"2026-07-21"},{"cvss_score":8.7,"headline":"Netty SpdyHttpDecoder: ByteBuf Reference Leak on RST_STREAM Leads to Native Memory Exhaustion","id":"CVE-2026-56745","kev_date_added":null,"published":"2026-07-21"},{"cvss_score":8.7,"headline":"Netty Vulnerable to DNS Cache Poisoning via Missing Bailiwick Checks in CNAME Records","id":"CVE-2026-45674","kev_date_added":null,"published":"2026-06-12"},{"cvss_score":8.7,"headline":"Netty has Insufficient Bailiwick Validation for NS Records","id":"CVE-2026-47691","kev_date_added":null,"published":"2026-06-12"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-18","vendors":["netty"]},"summary":"Netty library bypasses hostname verification when using plain trust managers, allowing man-in-the-middle attacks against TLS connections.","url":"https://insights.sbomify.com/CVE-2026-50010/"}