{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-47845 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-47845 is a medium-severity vulnerability in Spring Reactor Netty, published on 26 Aug 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-2026-47845 and fix it if it is affected.\n\nWhat it is: CVE-2026-47845 is a medium-severity vulnerability in Spring Reactor Netty, published on 26 Aug 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-2026-47845 in the wild and no public exploit code.\n\nAffected product: Spring Reactor Netty. 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-2026-47845/ (Markdown: https://insights.sbomify.com/CVE-2026-47845/index.md)","id":"CVE-2026-47845","markdown":"https://insights.sbomify.com/CVE-2026-47845/index.md","name":"CVE-2026-47845","record":{"aliases":["CLEANSTART-2026-ES91240","CLEANSTART-2026-GZ46020","CLEANSTART-2026-HS64071","CLEANSTART-2026-JY60048","CLEANSTART-2026-ZC51583","GHSA-c599-m66r-v62w"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Java networking library","requires_auth":"none","summary":"Attackers can bypass IP-based security controls by spoofing remote addresses when HAProxy Protocol is enabled in Reactor Netty.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"vmware","cpe":[{"product":"reactor_netty","vendor":"broadcom"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol.\nReactor Netty 1.3.0 - 1.3.6\nReactor Netty 1.1.0 - 1.2.18\nReactor Netty 1.0.52 and earlier","ecosystems":[],"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":"Reactor Netty HTTP Server may incorrectly evaluate proxy addresses","id":"CVE-2026-47845","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Hardcoded credentials in bitnami/cassandra","id":"CVE-2026-47846"},"packages":[],"prev":{"headline":"Reactor Netty HTTP Server Leaks Exception Details","id":"CVE-2026-47844"},"products":["Reactor Netty"],"published":"2026-08-26","related":[{"cvss_score":7.5,"headline":"In Reactor Netty HTTP Server a malicious user can send a request using a specially crafted URL that can lead to a directory traversal attack","id":"CVE-2023-34062","kev_date_added":null,"published":"2023-11-15"},{"cvss_score":6.8,"headline":"Reactor Netty authentication leak in redirects","id":"CVE-2019-11284","kev_date_added":null,"published":"2019-10-17"},{"cvss_score":6.5,"headline":"DoS Via Malformed URL with Reactor Netty HTTP Server","id":"CVE-2020-5403","kev_date_added":null,"published":"2020-03-03"},{"cvss_score":6.5,"headline":"Authentication Leak On Redirect With Reactor Netty HttpClient","id":"CVE-2020-5404","kev_date_added":null,"published":"2020-03-03"},{"cvss_score":6.1,"headline":"Reactor Netty WebSocket Client Leaks Credentials On Redirect","id":"CVE-2026-47848","kev_date_added":null,"published":"2026-08-26"},{"cvss_score":5.3,"headline":"Reactor Netty HTTP Server Leaks Exception Details","id":"CVE-2026-47844","kev_date_added":null,"published":"2026-08-26"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-27","vendors":["Spring"]},"summary":"Attackers can bypass IP-based security controls by spoofing remote addresses when HAProxy Protocol is enabled in Reactor Netty.","url":"https://insights.sbomify.com/CVE-2026-47845/"}