{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-26948 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-26948 is a high-severity vulnerability in htmldoc, published on 3 Mar 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-26948 and fix it if it is affected.\n\nWhat it is: CVE-2021-26948 is a high-severity vulnerability in htmldoc, published on 3 Mar 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-26948 in the wild and no public exploit code.\n\nAffected product: htmldoc. 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-2021-26948/ (Markdown: https://insights.sbomify.com/CVE-2021-26948/index.md)","id":"CVE-2021-26948","markdown":"https://insights.sbomify.com/CVE-2021-26948/index.md","name":"CVE-2021-26948","record":{"aliases":["DEBIAN-CVE-2021-26948","GHSA-2crh-849q-gg8v","UBUNTU-CVE-2021-26948"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"HTML document library","requires_auth":"none","summary":"Attackers can execute arbitrary code or cause denial of service via crafted HTML files in the htmldoc library.","user_interaction":"required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"htmldoc","vendor":"htmldoc_project"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"},{"id":"CWE-479","name":"Signal Handler Use of a Non-reentrant Function"}],"description":"Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.","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":"Null dereference in htmldoc","id":"CVE-2021-26948","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products","id":"CVE-2021-26950"},"packages":[],"prev":{"headline":"Cross-site scripting in Odoo Community","id":"CVE-2021-26947"},"products":["htmldoc"],"published":"2022-03-03","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-46478","kev_date_added":null,"published":"2024-10-24"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-45508","kev_date_added":null,"published":"2024-09-01"},{"cvss_score":9.8,"headline":"Memory corruption in htmldoc","id":"CVE-2021-23158","kev_date_added":null,"published":"2022-03-16"},{"cvss_score":9.8,"headline":"Memory corruption in htmldoc","id":"CVE-2021-23165","kev_date_added":null,"published":"2022-03-16"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2021-34119","kev_date_added":null,"published":"2023-07-18"},{"cvss_score":7.8,"headline":"Information disclosure in n/a","id":"CVE-2021-34121","kev_date_added":null,"published":"2023-07-18"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2022-28085","kev_date_added":null,"published":"2022-04-27"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code or cause denial of service via crafted HTML files in the htmldoc library.","url":"https://insights.sbomify.com/CVE-2021-26948/"}