{"answers":{"affected":"3 open source packages ship an affected version, including mint.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48862 exists.","fix":"Upgrade mint to 1.9.0 or later.","what":"CVE-2026-48862 is a high-severity denial of service vulnerability in elixir-mint mint, published on 2 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-2026-48862 and fix it if it is affected.\n\nWhat it is: CVE-2026-48862 is a high-severity denial of service vulnerability in elixir-mint mint, published on 2 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48862 exists.\n\nAffected packages and fixed versions:\n- mint (Hex): affected from 0.2.0; fixed in 1.9.0\n- mint (Hex): affected from 0.2.0; fixed in 1.9.0\n- mint (Hex): affected from 0.2.0; fixed in 1.9.0\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-2026-48862/ (Markdown: https://insights.sbomify.com/CVE-2026-48862/index.md)","id":"CVE-2026-48862","markdown":"https://insights.sbomify.com/CVE-2026-48862/index.md","name":"CVE-2026-48862","record":{"aliases":["EEF-CVE-2026-48862","GHSA-g586-ccqf-7x4r"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Elixir HTTP/2 client","requires_auth":"none","summary":"A malicious HTTP/2 server can exhaust client memory by flooding PUSH_PROMISE frames, causing denial of service in the Mint library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSH_PROMISE flooding.\n\nIn lib/mint/http2.ex, Mint.HTTP2.decode_push_promise_headers_and_add_response/5 inserts a :reserved_remote entry into conn.streams for every promised stream ID. The neighbouring Mint.HTTP2.assert_valid_promised_stream_id/2 only verifies that the promised ID is even and not already present; client_settings.max_concurrent_streams is not consulted at promise time. The concurrency cap is only checked when the response HEADERS for the promised stream arrive, so a server that emits PUSH_PROMISE frames and withholds the matching HEADERS never trips that check.\n\nHTTP/2 server push is accepted by default (client_settings.enable_push defaults to true). A single long-lived HTTP/2 connection to a hostile server lets that server pin one conn.streams entry per PUSH_PROMISE frame it sends, with no upper bound, until the client process runs out of memory.\n\nThis issue affects mint: from 0.2.0 before 1.9.0.","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":"Unbounded conn.streams growth in Mint HTTP/2 client via unenforced PUSH_PROMISE concurrency","id":"CVE-2026-48862","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Libsolv: stack-based buffer overflow in libsolv eddsa pgp signature verification allows denial of service","id":"CVE-2026-48863"},"packages":[{"ecosystem":"Hex","fixed":["1.9.0"],"introduced":["0.2.0"],"last_affected":[],"package":"mint","purl":"pkg:hex/mint","source":"EEF-CVE-2026-48862"},{"ecosystem":"Hex","fixed":["1.9.0"],"introduced":["0.2.0"],"last_affected":[],"package":"mint","purl":null,"source":"GHSA-g586-ccqf-7x4r"},{"ecosystem":"Hex","fixed":["1.9.0"],"introduced":["0.2.0"],"last_affected":[],"package":"mint","purl":"pkg:hex/mint","source":"GHSA-g586-ccqf-7x4r"}],"prev":{"headline":"CRLF injection in HTTP/1 request line via unvalidated method in Mint","id":"CVE-2026-48861"},"products":["mint"],"published":"2026-06-02","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-02","vendors":["elixir-mint"]},"summary":"A malicious HTTP/2 server can exhaust client memory by flooding PUSH_PROMISE frames, causing denial of service in the Mint library.","url":"https://insights.sbomify.com/CVE-2026-48862/"}