{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-5265 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-5265 is a medium-severity vulnerability in Red Hat Fast Datapath for RHEL 7, published on 24 Apr 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-2026-5265 and fix it if it is affected.\n\nWhat it is: CVE-2026-5265 is a medium-severity vulnerability in Red Hat Fast Datapath for RHEL 7, published on 24 Apr 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-2026-5265 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-2026-5265/ (Markdown: https://insights.sbomify.com/CVE-2026-5265/index.md)","id":"CVE-2026-5265","markdown":"https://insights.sbomify.com/CVE-2026-5265/index.md","name":"CVE-2026-5265","record":{"aliases":["DEBIAN-CVE-2026-5265","GHSA-whr7-6788-jg2p","UBUNTU-CVE-2026-5265"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"OVN network virtualization","requires_auth":"none","summary":"A malicious VM can trigger an ICMP error response that causes ovn-controller to leak heap memory contents back to the attacker.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-130","name":"Improper Handling of Length Parameter Inconsistency"}],"description":"When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length (ip_tot_len for IPv4, ip6_plen for IPv6) without validating it against the actual packet buffer size. A VM can send a short packet with an inflated IP length field that triggers an ICMP error (e.g., by hitting a reject ACL), causing ovn-controller to read heap memory beyond the valid packet data and include it in the ICMP response sent back to the VM.","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":"Ovn: ovn: heap over-read in icmp error response generation","id":"CVE-2026-5265","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":11,"next":{"headline":"Information disclosure in Echo","id":"CVE-2026-5266"},"packages":[],"prev":{"headline":"DTLS 1.3 ACK heap buffer overflow","id":"CVE-2026-5264"},"products":["Fast Datapath for RHEL 7","Fast Datapath for RHEL 8","Fast Datapath for RHEL 9","Fast Datapath for Red Hat Enterprise Linux 10","Fast Datapath for Red Hat Enterprise Linux 8","Fast Datapath for Red Hat Enterprise Linux 9"],"published":"2026-04-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-06-17","vendors":["Red Hat"]},"summary":"A malicious VM can trigger an ICMP error response that causes ovn-controller to leak heap memory contents back to the attacker.","url":"https://insights.sbomify.com/CVE-2026-5265/"}