{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-47848 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-47848 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, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-47848 and fix it if it is affected.\n\nWhat it is: CVE-2026-47848 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, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-47848 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-2026-47848/ (Markdown: https://insights.sbomify.com/CVE-2026-47848/index.md)","id":"CVE-2026-47848","markdown":"https://insights.sbomify.com/CVE-2026-47848/index.md","name":"CVE-2026-47848","record":{"aliases":["CLEANSTART-2026-DR61127","CLEANSTART-2026-DT37851","CLEANSTART-2026-FE25800","CLEANSTART-2026-GT11567","CLEANSTART-2026-HS68048","GHSA-6p7h-426w-rcrx"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Reactor Netty library","requires_auth":"none","summary":"Reactor Netty WebSocket client leaks credentials during cross-origin redirects if redirect following is enabled, exposing sensitive data to attackers.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"vmware","cpe":[{"product":"reactor_netty","vendor":"broadcom"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"description":"In specific scenarios involving WebSocket handshake redirects to a different origin, the Reactor Netty WebSocket client may leak credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects.\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 WebSocket Client Leaks Credentials On Redirect","id":"CVE-2026-47848","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Spring Data REST allows mutation of identifier and version properties via JSON Patch","id":"CVE-2026-47849"},"packages":[],"prev":{"headline":"Hardcoded credentials in bitnami/mariadb-galera","id":"CVE-2026-47847"},"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":5.3,"headline":"Reactor Netty HTTP Server Leaks Exception Details","id":"CVE-2026-47844","kev_date_added":null,"published":"2026-08-26"},{"cvss_score":5.3,"headline":"Reactor Netty HTTP Server may incorrectly evaluate proxy addresses","id":"CVE-2026-47845","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-26","vendors":["Spring"]},"summary":"Reactor Netty WebSocket client leaks credentials during cross-origin redirects if redirect following is enabled, exposing sensitive data to attackers.","url":"https://insights.sbomify.com/CVE-2026-47848/"}