{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-18277 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-18277 is a high-severity vulnerability in n/a, published on 23 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-18277 and fix it if it is affected.\n\nWhat it is: CVE-2019-18277 is a high-severity vulnerability in n/a, published on 23 Oct 2019. 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-2019-18277 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2019-18277/ (Markdown: https://insights.sbomify.com/CVE-2019-18277/index.md)","id":"CVE-2019-18277","markdown":"https://insights.sbomify.com/CVE-2019-18277/index.md","name":"CVE-2019-18277","record":{"aliases":["CLSA-2026-1776336742","CLSA-2026-1776337242","DEBIAN-CVE-2019-18277","GHSA-7r84-r685-grmg","SUSE-SU-2019:3125-1","SUSE-SU-2019:3126-1","SUSE-SU-2019:3288-1","UBUNTU-CVE-2019-18277","USN-4174-1","openSUSE-SU-2019:2626-1","openSUSE-SU-2019:2645-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"HAProxy load balancer","requires_auth":"none","summary":"Attackers can exploit HTTP request smuggling in HAProxy legacy mode with specific reuse settings to bypass security controls.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"haproxy","vendor":"haproxy"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the \"chunked\" value were not being correctly rejected. The impact was limited but if combined with the \"http-reuse always\" setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification).","ecosystems":["SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise High Availability Extension 12 SP3","SUSE:Linux Enterprise High Availability Extension 12 SP4","SUSE:Linux Enterprise High Availability Extension 12 SP5","SUSE:Linux Enterprise High Availability Extension 15","SUSE:Linux Enterprise High Availability Extension 15 SP1","SUSE:OpenStack Cloud 7","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.0","openSUSE:Leap 15.1"],"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":"Other in n/a","id":"CVE-2019-18277","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2019"},"n_packages":13,"n_references":7,"next":{"headline":"Memory corruption in n/a","id":"CVE-2019-18278"},"packages":[{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 12 SP3","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP3","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 12 SP4","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP4","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 12 SP5","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP5","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15","fixed":["2.0.10+git0.ac198b92-3.15.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015","source":"SUSE-SU-2019:3125-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP1","fixed":["2.0.10+git0.ac198b92-8.8.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP1","source":"SUSE-SU-2019:3126-1"},{"ecosystem":"SUSE:OpenStack Cloud 7","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20OpenStack%20Cloud%207","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:OpenStack Cloud 8","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20OpenStack%20Cloud%208","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:OpenStack Cloud 9","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20OpenStack%20Cloud%209","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 9","fixed":["1.6.11-11.3.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/suse/haproxy\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%209","source":"SUSE-SU-2019:3288-1"},{"ecosystem":"openSUSE:Leap 15.0","fixed":["2.0.10+git0.ac198b92-lp150.2.16.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/opensuse/haproxy\u0026distro=openSUSE%20Leap%2015.0","source":"openSUSE-SU-2019:2626-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["2.0.10+git0.ac198b92-lp151.2.6.1"],"introduced":["0"],"last_affected":[],"package":"haproxy","purl":"pkg:rpm/opensuse/haproxy\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2019:2645-1"}],"prev":{"headline":"Privilege escalation in n/a","id":"CVE-2019-18276"},"products":["n/a"],"published":"2019-10-23","related":[{"cvss_score":9,"headline":"HAProxy - Integer Overflow in FCGI Demux Record Length Field","id":"CVE-2026-55203","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":8.7,"headline":"HAProxy - NULL Pointer Dereference in hpack_dht_insert Function","id":"CVE-2026-55204","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":8.2,"headline":"Information disclosure in n/a","id":"CVE-2023-45539","kev_date_added":null,"published":"2023-11-28"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2024-45506","kev_date_added":null,"published":"2024-09-04"},{"cvss_score":7.5,"headline":"Information disclosure in HAProxy","id":"CVE-2023-0836","kev_date_added":null,"published":"2023-03-29"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2019-14241","kev_date_added":null,"published":"2019-07-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can exploit HTTP request smuggling in HAProxy legacy mode with specific reuse settings to bypass security controls.","url":"https://insights.sbomify.com/CVE-2019-18277/"}