{"answers":{"affected":"4 open source packages ship an affected version, including org.asynchttpclient:async-http-client.","exploited":"There is no known exploitation of CVE-2026-107280 in the wild and no public exploit code.","fix":"Upgrade org.asynchttpclient:async-http-client to a fixed version for your release line: 2.16.1 or 3.0.13.","what":"CVE-2026-107280 is a medium-severity 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-2026-107280 and fix it if it is affected.\n\nWhat it is: CVE-2026-107280 is a medium-severity 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-2026-107280 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.asynchttpclient:async-http-client (Maven): affected from 2.0.0; fixed in 2.16.1\n- org.asynchttpclient:async-http-client (Maven): affected from 2.0.0; fixed in 2.16.1\n- org.asynchttpclient:async-http-client (Maven): affected from 3.0.0; fixed in 3.0.13\n- org.asynchttpclient:async-http-client (Maven): affected from 3.0.0; fixed in 3.0.13\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-2026-107280/ (Markdown: https://insights.sbomify.com/CVE-2026-107280/index.md)","id":"CVE-2026-107280","markdown":"https://insights.sbomify.com/CVE-2026-107280/index.md","name":"CVE-2026-107280","record":{"aliases":["DEBIAN-CVE-2026-107280","ECHO-9a26-378a-6a12","GHSA-f9m8-cv68-674w","MINI-f8wh-3fx7-f27j","MINI-jhp2-x5rc-855h","MINI-v38v-wgfm-mcq6","MINI-vmhf-796w-qq86","UBUNTU-CVE-2026-107280"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Java HTTP client library","requires_auth":"none","summary":"Attackers can set cookies for public suffixes like co.uk, allowing cross-origin session hijacking or data injection in Java applications using AsyncHttpClient.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1275","name":"Sensitive Cookie with Improper SameSite Attribute"}],"description":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13  and 2.16.1, ThreadSafeCookieStore validates Domain attributes with domain matching but does not reject public suffixes. A host beneath a suffix such as co.uk can set a cookie for that suffix, after which the shared cookie store sends it to unrelated hosts under the suffix. This can inject or overwrite session-relevant cookie values across origins. This issue is fixed in versions 3.0.13 and 2.16.1.","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: Cookie Domain attribute is not checked against the public suffix list, so a cookie can be set for co.uk","id":"CVE-2026-107280","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"other","year":"2026"},"n_packages":4,"n_references":5,"next":{"headline":"Auth bypass in async-http-client","id":"CVE-2026-107281"},"packages":[{"ecosystem":"Maven","fixed":["2.16.1"],"introduced":["2.0.0"],"last_affected":[],"package":"org.asynchttpclient:async-http-client","purl":null,"source":"GHSA-f9m8-cv68-674w"},{"ecosystem":"Maven","fixed":["2.16.1"],"introduced":["2.0.0"],"last_affected":[],"package":"org.asynchttpclient:async-http-client","purl":"pkg:maven/org.asynchttpclient/async-http-client","source":"GHSA-f9m8-cv68-674w"},{"ecosystem":"Maven","fixed":["3.0.13"],"introduced":["3.0.0"],"last_affected":[],"package":"org.asynchttpclient:async-http-client","purl":null,"source":"GHSA-f9m8-cv68-674w"},{"ecosystem":"Maven","fixed":["3.0.13"],"introduced":["3.0.0"],"last_affected":[],"package":"org.asynchttpclient:async-http-client","purl":"pkg:maven/org.asynchttpclient/async-http-client","source":"GHSA-f9m8-cv68-674w"}],"prev":{"headline":"AsyncHttpClient: Digest mutual authentication is switched off by a peer offering qop=auth-int","id":"CVE-2026-107279"},"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["AsyncHttpClient"]},"summary":"Attackers can set cookies for public suffixes like co.uk, allowing cross-origin session hijacking or data injection in Java applications using AsyncHttpClient.","url":"https://insights.sbomify.com/CVE-2026-107280/"}