{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-82439 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-82439 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-82439 is a critical denial of service vulnerability in Apache Storm DRPC, published on 14 Sep 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-2026-82439 and fix it if it is affected.\n\nWhat it is: CVE-2026-82439 is a critical denial of service vulnerability in Apache Storm DRPC, published on 14 Sep 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-2026-82439 in the wild and no public exploit code.\n\nAffected product: Apache Storm DRPC. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-82439/ (Markdown: https://insights.sbomify.com/CVE-2026-82439/index.md)","id":"CVE-2026-82439","markdown":"https://insights.sbomify.com/CVE-2026-82439/index.md","name":"CVE-2026-82439","record":{"aliases":["GHSA-q5hq-8q75-r6f6"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Storm DRPC","requires_auth":"none","summary":"Unauthenticated attackers can cause permanent memory exhaustion in Apache Storm DRPC by sending unique function names, leading to denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Description\n\nThe DRPC server kept a map from function name to request queue and created an entry the first time a\nfunction name was seen. No code path ever removed an entry: request cleanup removed the request from its\nqueue, and the shutdown path drained queues, but the queue object and its map entry remained for the life of\nthe process.\n\nFunction names come from the client and are not constrained to functions any topology has registered, so the\nnumber of retained entries is bounded only by the number of distinct names an attacker chooses to send, and\neach retained entry holds the name itself. `drpc.authorizer` is unset by default, so no credentials are\nrequired to reach the endpoint.\n\nThe retained state is permanent rather than a transient load spike, so the effect accumulates until the DRPC\nserver exhausts its heap.\n\nMitigation\n\nUpgrade to 3.1.0, where a function's queue is removed once nothing is waiting in it.\n\nUsers who cannot upgrade immediately should configure `drpc.authorizer` so that only trusted principals can\nreach the DRPC endpoints, and should ensure the DRPC ports are not reachable from untrusted networks.\n\nCredit\n\nThe ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Apache Storm DRPC: Unauthenticated Unbounded Memory Growth in DRPC","id":"CVE-2026-82439","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Apache Storm Nimbus: Cross-Tenant Blob Deletion and Cluster Denial of Service via Unvalidated Topology Dependency Keys","id":"CVE-2026-82441"},"packages":[],"prev":{"headline":"Apache Storm Webapp: Authenticated API Responses Exposed to Arbitrary Web Origins","id":"CVE-2026-82438"},"products":["Apache Storm DRPC"],"published":"2026-09-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"total"},"state":"PUBLISHED","updated":"2026-09-14","vendors":["Apache Software Foundation"]},"summary":"Unauthenticated attackers can cause permanent memory exhaustion in Apache Storm DRPC by sending unique function names, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-82439/"}