{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-86249 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-86249 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-86249 is a vulnerability in Apache bRPC, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-86249 and fix it if it is affected.\n\nWhat it is: CVE-2026-86249 is a vulnerability in Apache bRPC, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-86249 in the wild and no public exploit code.\n\nAffected product: Apache bRPC. 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-2026-86249/ (Markdown: https://insights.sbomify.com/CVE-2026-86249/index.md)","id":"CVE-2026-86249","markdown":"https://insights.sbomify.com/CVE-2026-86249/index.md","name":"CVE-2026-86249","record":{"aliases":["GHSA-9hx3-v45m-g57x"],"analysis":null,"analysis_generated_by":null,"assigner":"apache","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"On a brpc::Server that sets both ServerOptions.auth and ServerOptions.internal_port, the HTTP built-in service exemption on internal_port can be abused to bypass authentication entirely. VerifyHttpRequest() returns true without checking any credential when a built-in service is requested on internal_port, and this verdict is not per - request: verification runs only for the first message of a connection and the result latches the connection. Sending a request such as GET /status to internal_port first authenticates the whole connection, after which every subsequent request dispatched on the same connection is handled without ever calling VerifyHttpRequest(). This lets a remote attacker reach ordinary (non-built-in, non-tabbed) authenticated services without supplying valid credentials whenever the server uses ServerOptions.internal_port together with an Authenticator. The fix restricts internal_port so that it carries only built-in and Tabbed services; requests for ordinary services sent to internal_port are rejected with EPREM / HTTP 403. \n\nMitigation / Fix: upgrade to 1.18.0 or apply PR https://github.com/apache/brpc/pull/3525 . \n\nUsers who rely on serving normal services on internal_port must move those requests to the port passed to Server::Start().","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Apache bRPC: Authentication bypass when a server sets ServerOptions.internal_port and ServerOptions.auth","id":"CVE-2026-86249","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"h3 before 2.0.1-rc.18 Denial of Service via Unbounded Chunked Cookie","id":"CVE-2026-86250"},"packages":[],"prev":{"headline":"Auth bypass in Apache Tomcat","id":"CVE-2026-86248"},"products":["Apache bRPC"],"published":"2026-10-21","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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Apache Software Foundation"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-86249/"}