{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-29079 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-29079 is a high-severity memory corruption vulnerability in lexbor, published on 13 Mar 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-2026-29079 and fix it if it is affected.\n\nWhat it is: CVE-2026-29079 is a high-severity memory corruption vulnerability in lexbor, published on 13 Mar 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-2026-29079 in the wild and no public exploit code.\n\nAffected product: lexbor. 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-2026-29079/ (Markdown: https://insights.sbomify.com/CVE-2026-29079/index.md)","id":"CVE-2026-29079","markdown":"https://insights.sbomify.com/CVE-2026-29079/index.md","name":"CVE-2026-29079","record":{"aliases":["DEBIAN-CVE-2026-29079","GHSA-mrpr-v36q-2vp8","UBUNTU-CVE-2026-29079"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"HTML parsing library","requires_auth":"none","summary":"A type confusion flaw in the Lexbor HTML fragment parser allows attackers to corrupt memory and potentially execute arbitrary code or cause a crash.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"lexbor","vendor":"lexbor"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"}],"description":"Lexbor is a web browser engine library. Prior to 2.7.0, a type‑confusion vulnerability exists in Lexbor’s HTML fragment parser. When ns = UNDEF, a comment is created using the “unknown element” constructor. The comment’s data are written into the element’s fields via an unsafe cast, corrupting the qualified_name field. That corrupted value is later used as a pointer and dereferenced near the zero page. This vulnerability is fixed in 2.7.0.","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":"Type Confusion in Lexbor Fragment Parser","id":"CVE-2026-29079","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Rucio SQL Injection in FilterEngine Oracle JSON Path via DID Search API","id":"CVE-2026-29080"},"packages":[],"prev":{"headline":"Integer Underflow in Lexbor ISO‑2022‑JP Encoder","id":"CVE-2026-29078"},"products":["lexbor"],"published":"2026-03-13","related":[{"cvss_score":8.2,"headline":"Integer Underflow in Lexbor ISO‑2022‑JP Encoder","id":"CVE-2026-29078","kev_date_added":null,"published":"2026-03-13"}],"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":"partial"},"state":"PUBLISHED","updated":"2026-03-16","vendors":["lexbor"]},"summary":"A type confusion flaw in the Lexbor HTML fragment parser allows attackers to corrupt memory and potentially execute arbitrary code or cause a crash.","url":"https://insights.sbomify.com/CVE-2026-29079/"}