{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-2645 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-2645 is a medium-severity vulnerability in Wolfssl Wolfssl, published on 19 Mar 2026."},"fix_prompt":"Check this codebase for CVE-2026-2645 and fix it if it is affected.\n\nWhat it is: CVE-2026-2645 is a medium-severity vulnerability in Wolfssl Wolfssl, published on 19 Mar 2026. \nExploitation: There is no known exploitation of CVE-2026-2645 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-2026-2645/ (Markdown: https://insights.sbomify.com/CVE-2026-2645/index.md)","id":"CVE-2026-2645","markdown":"https://insights.sbomify.com/CVE-2026-2645/index.md","name":"CVE-2026-2645","record":{"aliases":["DEBIAN-CVE-2026-2645","GHSA-cwc7-2fmx-fffq","JLSEC-2026-701","UBUNTU-CVE-2026-2645"],"analysis":null,"analysis_generated_by":null,"assigner":"wolfSSL","cpe":[{"product":"wolfssl","vendor":"wolfssl"}],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-358","name":"Improperly Implemented Security Check for Standard"}],"description":"In wolfSSL 5.8.2 and earlier, a logic flaw existed in the TLS 1.2 server state machine implementation. The server could incorrectly accept the CertificateVerify message before the ClientKeyExchange message had been received. This issue affects wolfSSL before 5.8.4 (wolfSSL 5.8.2 and earlier is vulnerable, 5.8.4 is not vulnerable). In 5.8.4 wolfSSL would detect the issue later in the handshake. 5.9.0 was further hardened to catch the issue earlier in the handshake.","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":"Acceptance of CertificateVerify Message before ClientKeyExchange in TLS 1.2","id":"CVE-2026-2645","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":"Heap buffer overflow in session parsing with wolfSSL_d2i_SSL_SESSION() function","id":"CVE-2026-2646"},"packages":[],"prev":{"headline":"niklasso minisat DIMACS File SolverTypes.h value out-of-bounds","id":"CVE-2026-2644"},"products":["wolfSSL"],"published":"2026-03-19","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-19","vendors":["wolfSSL"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-2645/"}