{"answers":{"affected":"7 open source packages ship an affected version, including github.com/traefik/traefik/v2, github.com/traefik/traefik and github.com/traefik/traefik/v3. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-47124 in the wild and no public exploit code.","fix":"Upgrade github.com/traefik/traefik/v2 to 2.10.6 or later.","what":"CVE-2023-47124 is a medium-severity denial of service vulnerability in Traefik Traefik, published on 4 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-47124 and fix it if it is affected.\n\nWhat it is: CVE-2023-47124 is a medium-severity denial of service vulnerability in Traefik Traefik, published on 4 Dec 2023. 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-2023-47124 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.10.6\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.10.6\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.10.6\n- github.com/traefik/traefik (Go): affected all versions; no fix listed\n- github.com/traefik/traefik/v3 (Go): affected all versions; fixed in 3.0.0-beta5\n- github.com/traefik/traefik/v3 (Go): affected all versions; fixed in 3.0.0-beta5\n- github.com/traefik/traefik/v3 (Go): affected all versions; fixed in 3.0.0-beta5\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-2023-47124/ (Markdown: https://insights.sbomify.com/CVE-2023-47124/index.md)","id":"CVE-2023-47124","markdown":"https://insights.sbomify.com/CVE-2023-47124/index.md","name":"CVE-2023-47124","record":{"aliases":["ECHO-6d34-77d3-0a22","GHSA-8g85-whqh-cr2f","GO-2023-2381"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"HTTP reverse proxy","requires_auth":"none","summary":"Attackers can cause denial of service in Traefik via slowloris attacks when HTTPChallenge is used for ACME certificate renewal.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"traefik","vendor":"traefik"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-772","name":"Missing Release of Resource after Effective Lifetime"}],"description":"Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.","ecosystems":["Go"],"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":"Denial of service whith ACME HTTPChallenge in Traefik","id":"CVE-2023-47124","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"traefik:traefik","products":["traefik:traefik"],"type":"denial_of_service","year":"2023"},"n_packages":7,"n_references":7,"next":{"headline":"By-passing Cross-Site Scripting Protection in HTML Sanitizer","id":"CVE-2023-47125"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","source":"GO-2023-2381"},{"ecosystem":"Go","fixed":["2.10.6"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":null,"source":"GHSA-8g85-whqh-cr2f"},{"ecosystem":"Go","fixed":["2.10.6"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","source":"GHSA-8g85-whqh-cr2f"},{"ecosystem":"Go","fixed":["2.10.6"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","source":"GO-2023-2381"},{"ecosystem":"Go","fixed":["3.0.0-beta5"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":null,"source":"GHSA-8g85-whqh-cr2f"},{"ecosystem":"Go","fixed":["3.0.0-beta5"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","source":"GHSA-8g85-whqh-cr2f"},{"ecosystem":"Go","fixed":["3.0.0-beta5"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","source":"GO-2023-2381"}],"prev":{"headline":"iTop vulnerable to XSS vulnerability in n:n relations \"tagset\" widget","id":"CVE-2023-47123"},"products":["traefik"],"published":"2023-12-04","related":[{"cvss_score":9.8,"headline":"HTTP client can remove the X-Forwarded headers in Traefik","id":"CVE-2024-45410","kev_date_added":null,"published":"2024-09-19"},{"cvss_score":9.3,"headline":"Traefik v3.7.0 Authentication Bypass via from-to-www-redirect","id":"CVE-2026-88877","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":9.3,"headline":"Traefik before v2.11.55 and v3.0.0 through v3.7.10 Authentication Bypass via digestAuth","id":"CVE-2026-85595","kev_date_added":null,"published":"2026-09-04"},{"cvss_score":9.1,"headline":"Traefik HTTP/3 Backend NTLM Connection Reuse","id":"CVE-2026-88007","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":8.8,"headline":"Traefik: Rootless HTTP/1 request-target routes as \"/\" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access logging","id":"CVE-2026-88009","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":8.8,"headline":"Traefik has a possible vulnerability with the path matchers","id":"CVE-2025-32431","kev_date_added":null,"published":"2025-04-21"},{"cvss_score":8.2,"headline":"Traefik v3.7 Authentication Bypass via TLS Option Conflict","id":"CVE-2026-85596","kev_date_added":null,"published":"2026-09-04"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-12-18","vendors":["traefik"]},"summary":"Attackers can cause denial of service in Traefik via slowloris attacks when HTTPChallenge is used for ACME certificate renewal.","url":"https://insights.sbomify.com/CVE-2023-47124/"}