{"answers":{"affected":"4 open source packages ship an affected version, including org.asynchttpclient:async-http-client.","exploited":"There is no known exploitation of CVE-2026-107227 in the wild and no public exploit code.","fix":"Upgrade org.asynchttpclient:async-http-client to 3.0.14 or later.","what":"CVE-2026-107227 is a high-severity denial of service vulnerability in AsyncHttpClient async-http-client, published on 7 Oct 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-2026-107227 and fix it if it is affected.\n\nWhat it is: CVE-2026-107227 is a high-severity denial of service vulnerability in AsyncHttpClient async-http-client, published on 7 Oct 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-2026-107227 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.asynchttpclient:async-http-client (Maven): affected from 2.2.0 up to 2.16.1; no fix listed\n- org.asynchttpclient:async-http-client (Maven): affected from 2.2.0 up to 2.16.1; no fix listed\n- org.asynchttpclient:async-http-client (Maven): affected from 3.0.0; fixed in 3.0.14\n- org.asynchttpclient:async-http-client (Maven): affected from 3.0.0; fixed in 3.0.14\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-2026-107227/ (Markdown: https://insights.sbomify.com/CVE-2026-107227/index.md)","id":"CVE-2026-107227","markdown":"https://insights.sbomify.com/CVE-2026-107227/index.md","name":"CVE-2026-107227","record":{"aliases":["DEBIAN-CVE-2026-107227","GHSA-x8v2-478q-2hvg","MINI-f9x6-gqrq-p57g","MINI-mf6c-4ggv-524q","ROOT-APP-MAVEN-CVE-2026-107227","UBUNTU-CVE-2026-107227"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Java HTTP client library","requires_auth":"none","summary":"A malicious WebSocket peer can cause a denial of service via decompression bomb in AsyncHttpClient when compression is enabled.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-409","name":"Improper Handling of Highly Compressed Data (Data Amplification)"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.2.0 until 3.0.14, WebSocket permessage-deflate decompression is unbounded when compression is enabled. The inbound pipeline aggregates compressed frames before WebSocketClientCompressionHandler inflates them, so webSocketMaxFrameSize and webSocketMaxBufferSize do not bound decompressed output. A malicious WebSocket peer can send a small compressed message that expands to a very large Netty buffer and exhausts JVM heap. This issue is fixed in version 3.0.14.","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":"AsyncHttpClient: Unbounded WebSocket permessage-deflate decompression enables a decompression-bomb denial of service when compression is enabled","id":"CVE-2026-107227","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":3,"next":{"headline":"AsyncHttpClient CookieStore Silently Overrides Caller's Explicit Cookie Header via setHeader (Bypass of CVE-2024-53990 Fix)","id":"CVE-2026-107228"},"packages":[{"ecosystem":"Maven","fixed":[],"introduced":["2.2.0"],"last_affected":["2.16.1"],"package":"org.asynchttpclient:async-http-client","purl":null,"source":"GHSA-x8v2-478q-2hvg"},{"ecosystem":"Maven","fixed":[],"introduced":["2.2.0"],"last_affected":["2.16.1"],"package":"org.asynchttpclient:async-http-client","purl":"pkg:maven/org.asynchttpclient/async-http-client","source":"GHSA-x8v2-478q-2hvg"},{"ecosystem":"Maven","fixed":["3.0.14"],"introduced":["3.0.0"],"last_affected":[],"package":"org.asynchttpclient:async-http-client","purl":null,"source":"GHSA-x8v2-478q-2hvg"},{"ecosystem":"Maven","fixed":["3.0.14"],"introduced":["3.0.0"],"last_affected":[],"package":"org.asynchttpclient:async-http-client","purl":"pkg:maven/org.asynchttpclient/async-http-client","source":"GHSA-x8v2-478q-2hvg"}],"prev":{"headline":"AsyncHttpClient: Cookies received over plaintext HTTP can plant, overwrite or delete Secure cookies set over HTTPS","id":"CVE-2026-107226"},"products":["async-http-client"],"published":"2026-10-07","related":[],"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":"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":"2026-10-08","vendors":["AsyncHttpClient"]},"summary":"A malicious WebSocket peer can cause a denial of service via decompression bomb in AsyncHttpClient when compression is enabled.","url":"https://insights.sbomify.com/CVE-2026-107227/"}