{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-29013 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-29013 is a high-severity memory corruption vulnerability in libcoap, published on 17 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-2026-29013 and fix it if it is affected.\n\nWhat it is: CVE-2026-29013 is a high-severity memory corruption vulnerability in libcoap, published on 17 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-2026-29013 in the wild and no public exploit code.\n\nAffected product: libcoap. 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-2026-29013/ (Markdown: https://insights.sbomify.com/CVE-2026-29013/index.md)","id":"CVE-2026-29013","markdown":"https://insights.sbomify.com/CVE-2026-29013/index.md","name":"CVE-2026-29013","record":{"aliases":["DEBIAN-CVE-2026-29013","GHSA-4vrr-6f8v-98rf","UBUNTU-CVE-2026-29013","openSUSE-SU-2026:10592-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"CoAP library","requires_auth":"none","summary":"Attackers can trigger out-of-bounds reads in libcoap via crafted CoAP requests, potentially causing crashes or information disclosure.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"libcoap","vendor":"libcoap"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix B.2 CBOR unwrap handling where get_byte_inc() in src/oscore/oscore_cbor.c relies solely on assert() for bounds checking, which is removed in release builds compiled with NDEBUG. Attackers can send crafted CoAP requests with malformed OSCORE options or responses during OSCORE negotiation to trigger out-of-bounds reads during CBOR parsing and potentially cause out-of-bounds reads through integer wraparound in allocation size computation.","ecosystems":["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":"libcoap Out-of-Bounds Read in OSCORE CBOR Unwrap Handling","id":"CVE-2026-29013","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":1,"n_references":1,"next":{"headline":"MetInfo CMS Unauthenticated PHP Code Injection RCE","id":"CVE-2026-29014"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["4.3.5b-1.1"],"introduced":["0"],"last_affected":[],"package":"libcoap","purl":"pkg:rpm/opensuse/libcoap\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10592-1"}],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2026-29012"},"products":["libcoap"],"published":"2026-04-17","related":[{"cvss_score":8.2,"headline":"libcoap Stack-Based Buffer Overflow in Address Resolution DoS or Potential RCE","id":"CVE-2025-34468","kev_date_added":null,"published":"2025-12-31"},{"cvss_score":7.5,"headline":"Null dereference in n/a","id":"CVE-2025-65493","kev_date_added":null,"published":"2025-11-24"},{"cvss_score":7.5,"headline":"Null dereference in n/a","id":"CVE-2025-65494","kev_date_added":null,"published":"2025-11-24"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2025-65495","kev_date_added":null,"published":"2025-11-24"},{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2023-30362","kev_date_added":null,"published":"2023-06-23"},{"cvss_score":6.5,"headline":"Information disclosure in n/a","id":"CVE-2025-59391","kev_date_added":null,"published":"2025-12-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["libcoap"]},"summary":"Attackers can trigger out-of-bounds reads in libcoap via crafted CoAP requests, potentially causing crashes or information disclosure.","url":"https://insights.sbomify.com/CVE-2026-29013/"}