{"answers":{"affected":"3 open source packages ship an affected version, including hackney. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47069 exists.","fix":"Upgrade hackney to 4.0.1 or later.","what":"CVE-2026-47069 is a low-severity vulnerability in benoitc hackney, published on 25 May 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-47069 and fix it if it is affected.\n\nWhat it is: CVE-2026-47069 is a low-severity vulnerability in benoitc hackney, published on 25 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47069 exists.\n\nAffected packages and fixed versions:\n- hackney (Hex): affected from 0.9.0; fixed in 4.0.1\n- hackney (Hex): affected from 0.9.0; fixed in 4.0.1\n- hackney (Hex): affected from 0.9.0; fixed in 4.0.1\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-2026-47069/ (Markdown: https://insights.sbomify.com/CVE-2026-47069/index.md)","id":"CVE-2026-47069","markdown":"https://insights.sbomify.com/CVE-2026-47069/index.md","name":"CVE-2026-47069","record":{"aliases":["EEF-CVE-2026-47069","GHSA-mp55-p8c9-rfw2"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Erlang HTTP client library","requires_auth":"none","summary":"Attackers can inject CRLF sequences into cookie domain or path options, enabling HTTP response splitting and header injection in applications using hackney.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[{"product":"hackney","vendor":"benoitc"}],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-93","name":"Improper Neutralization of CRLF Sequences"}],"description":"Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in benoitc hackney allows HTTP Response Splitting. The hackney_cookie:setcookie/3 function in src/hackney_cookie.erl validates the Name and Value arguments against CRLF and control characters, but concatenates the domain and path options verbatim into the output iolist with no equivalent check. An attacker who controls either option — for example by supplying a Host header value forwarded as the cookie domain, or a request path forwarded as the cookie path — can inject a literal CRLF sequence and arbitrary additional Set-Cookie headers into the HTTP response.\n\nThis issue affects hackney: from 0.9.0 before 4.0.1.","ecosystems":["Hex"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"CRLF injection in cookie domain/path options in hackney","id":"CVE-2026-47069","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":"other","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"HTTP/3 redirect handler leaks Authorization and Cookie headers to cross-origin redirect target in hackney","id":"CVE-2026-47070"},"packages":[{"ecosystem":"Hex","fixed":["4.0.1"],"introduced":["0.9.0"],"last_affected":[],"package":"hackney","purl":"pkg:hex/hackney","source":"EEF-CVE-2026-47069"},{"ecosystem":"Hex","fixed":["4.0.1"],"introduced":["0.9.0"],"last_affected":[],"package":"hackney","purl":null,"source":"GHSA-mp55-p8c9-rfw2"},{"ecosystem":"Hex","fixed":["4.0.1"],"introduced":["0.9.0"],"last_affected":[],"package":"hackney","purl":"pkg:hex/hackney","source":"GHSA-mp55-p8c9-rfw2"}],"prev":{"headline":"Cross-session PubSub topic injection via URL parameter in phoenix_storybook","id":"CVE-2026-47068"},"products":["hackney"],"published":"2026-05-25","related":[{"cvss_score":8.7,"headline":"Infinite loop in Alt-Svc header parser in hackney","id":"CVE-2026-47066","kev_date_added":null,"published":"2026-05-25"},{"cvss_score":8.7,"headline":"Atom table exhaustion via unrecognized URL schemes in hackney","id":"CVE-2026-47067","kev_date_added":null,"published":"2026-05-25"},{"cvss_score":8.7,"headline":"Unbounded memory consumption in WebSocket client in hackney","id":"CVE-2026-47073","kev_date_added":null,"published":"2026-05-25"},{"cvss_score":8.2,"headline":"SOCKS5 TLS upgrade ignores caller timeout in hackney","id":"CVE-2026-47071","kev_date_added":null,"published":"2026-05-25"},{"cvss_score":8.2,"headline":"Unbounded body accumulation in HTTP/3 response loop in hackney","id":"CVE-2026-47077","kev_date_added":null,"published":"2026-05-25"},{"cvss_score":6.9,"headline":"CRLF injection in WebSocket upgrade request in hackney","id":"CVE-2026-47072","kev_date_added":null,"published":"2026-05-25"},{"cvss_score":6.9,"headline":"SSRF allowlist bypass via percent-encoded host in hackney","id":"CVE-2026-47076","kev_date_added":null,"published":"2026-05-25"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Erlang Ecosystem Foundation","prefix":"EEF"},{"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-27","vendors":["benoitc"]},"summary":"Attackers can inject CRLF sequences into cookie domain or path options, enabling HTTP response splitting and header injection in applications using hackney.","url":"https://insights.sbomify.com/CVE-2026-47069/"}