{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-34956 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-34956 is a medium-severity denial of service vulnerability in Red Hat Fast Datapath for RHEL 7, published on 5 May 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-2026-34956 and fix it if it is affected.\n\nWhat it is: CVE-2026-34956 is a medium-severity denial of service vulnerability in Red Hat Fast Datapath for RHEL 7, published on 5 May 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-2026-34956 in the wild and no public exploit code.\n\nAffected product: Red Hat Fast Datapath for RHEL 7. 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-2026-34956/ (Markdown: https://insights.sbomify.com/CVE-2026-34956/index.md)","id":"CVE-2026-34956","markdown":"https://insights.sbomify.com/CVE-2026-34956/index.md","name":"CVE-2026-34956","record":{"aliases":["AZL-86781","DEBIAN-CVE-2026-34956","GHSA-q5f5-xxh8-jx9h","OESA-2026-1871","OESA-2026-1872","OESA-2026-1960","OESA-2026-1961","OESA-2026-1962","OESA-2026-2063","SUSE-SU-2026:1439-1","SUSE-SU-2026:1440-1","SUSE-SU-2026:1482-1","SUSE-SU-2026:21250-1","SUSE-SU-2026:22068-1","UBUNTU-CVE-2026-34956","openSUSE-SU-2026:10534-1"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Open vSwitch","requires_auth":"none","summary":"Remote attackers can cause a denial of service in Open vSwitch by sending malformed FTP commands when FTP helpers are enabled.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"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-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in a Denial of Service (DoS) for the affected system.","ecosystems":["SUSE:Linux Enterprise Micro 5.5","SUSE:Linux Enterprise Module for Package Hub 15 SP7","SUSE:Linux Enterprise Module for Server Applications 15 SP7","SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","SUSE:Linux Micro 6.0","SUSE:Linux Micro 6.1","openSUSE:Tumbleweed"],"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":"Openvswitch: open vswitch: denial of service via malformed ftp epasv command","id":"CVE-2026-34956","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":7,"n_references":2,"next":{"headline":"Adminer before 5.5.0 Open Redirect via X-Forwarded-Prefix","id":"CVE-2026-34959"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Micro 5.5","fixed":["3.1.7-150500.3.28.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch3","purl":"pkg:rpm/suse/openvswitch3\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.5","source":"SUSE-SU-2026:1440-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP7","fixed":["3.5.4-150700.41.15.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7","source":"SUSE-SU-2026:1439-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP7","fixed":["3.5.4-150700.41.15.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP7","source":"SUSE-SU-2026:1439-1"},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","fixed":["2.11.5-3.30.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5","source":"SUSE-SU-2026:1482-1"},{"ecosystem":"SUSE:Linux Micro 6.0","fixed":["3.1.7-5.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Micro%206.0","source":"SUSE-SU-2026:21250-1"},{"ecosystem":"SUSE:Linux Micro 6.1","fixed":["3.1.7-slfo.1.1_3.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Micro%206.1","source":"SUSE-SU-2026:22068-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.7.1-33.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/opensuse/openvswitch\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10534-1"}],"prev":{"headline":"PraisonAI: Sandbox Escape via shell=True and Bypassable Blocklist in SubprocessSandbox","id":"CVE-2026-34955"},"products":["Fast Datapath for RHEL 7","Fast Datapath for RHEL 8","Fast Datapath for RHEL 9","Red Hat Enterprise Linux 7","Red Hat OpenShift Container Platform 4","Red Hat OpenStack Platform 13 (Queens)","Red Hat OpenStack Platform 16.2","Red Hat OpenStack Platform 17.1","Red Hat OpenStack Platform 18.0"],"published":"2026-05-05","related":[],"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":"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":"2026-09-01","vendors":["Red Hat"]},"summary":"Remote attackers can cause a denial of service in Open vSwitch by sending malformed FTP commands when FTP helpers are enabled.","url":"https://insights.sbomify.com/CVE-2026-34956/"}