{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-5264 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-5264 is a high-severity vulnerability in Wolfssl Wolfssl, published on 9 Apr 2026."},"fix_prompt":"Check this codebase for CVE-2026-5264 and fix it if it is affected.\n\nWhat it is: CVE-2026-5264 is a high-severity vulnerability in Wolfssl Wolfssl, published on 9 Apr 2026. \nExploitation: There is no known exploitation of CVE-2026-5264 in the wild and no public exploit code.\n\nAffected product: Wolfssl Wolfssl. 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-2026-5264/ (Markdown: https://insights.sbomify.com/CVE-2026-5264/index.md)","id":"CVE-2026-5264","markdown":"https://insights.sbomify.com/CVE-2026-5264/index.md","name":"CVE-2026-5264","record":{"aliases":["DEBIAN-CVE-2026-5264","GHSA-w5qh-hw7x-9w39","JLSEC-2026-718","UBUNTU-CVE-2026-5264"],"analysis":null,"analysis_generated_by":null,"assigner":"wolfSSL","cpe":[{"product":"wolfssl","vendor":"wolfssl"}],"cvss":{"score":8.3,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow.","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":"DTLS 1.3 ACK heap buffer overflow","id":"CVE-2026-5264","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"wolfssl:wolfssl","products":["wolfssl:wolfssl"],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Ovn: ovn: heap over-read in icmp error response generation","id":"CVE-2026-5265"},"packages":[],"prev":{"headline":"URI nameConstraints not enforced in ConfirmNameConstraints()","id":"CVE-2026-5263"},"products":["wolfSSL"],"published":"2026-04-09","related":[{"cvss_score":10,"headline":"Buffer overread in domain name matching","id":"CVE-2024-5991","kev_date_added":null,"published":"2024-08-27"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2021-37155","kev_date_added":null,"published":"2021-07-21"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2020-36177","kev_date_added":null,"published":"2021-01-06"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2014-2896","kev_date_added":null,"published":"2020-01-28"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2014-2897","kev_date_added":null,"published":"2020-01-28"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2014-2898","kev_date_added":null,"published":"2020-01-28"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-16748","kev_date_added":null,"published":"2019-09-24"}],"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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-10","vendors":["wolfSSL"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-5264/"}