{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-24027 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-24027 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-24027 is a high-severity vulnerability in Facebook WhatsApp Business for Android, published on 6 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-24027 and fix it if it is affected.\n\nWhat it is: CVE-2021-24027 is a high-severity vulnerability in Facebook WhatsApp Business for Android, published on 6 Apr 2021. 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-2021-24027 in the wild and no public exploit code.\n\nAffected product: Facebook WhatsApp Business for Android. 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-2021-24027/ (Markdown: https://insights.sbomify.com/CVE-2021-24027/index.md)","id":"CVE-2021-24027","markdown":"https://insights.sbomify.com/CVE-2021-24027/index.md","name":"CVE-2021-24027","record":{"aliases":["GHSA-rr7p-xgf7-grw4"],"analysis":{"component_type":"mobile_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"WhatsApp Android app","requires_auth":"none","summary":"An attacker with device storage access can read cached TLS material from WhatsApp for Android, potentially exposing sensitive communication data.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"facebook","cpe":[{"product":"whatsapp","vendor":"whatsapp"},{"product":"whatsapp_business","vendor":"whatsapp"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-524","name":"Use of Cache Containing Sensitive Information"}],"description":"A cache configuration issue prior to WhatsApp for Android v2.21.4.18 and WhatsApp Business for Android v2.21.4.18 may have allowed a third party with access to the device’s external storage to read cached TLS material.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2021-03-11","github_poc":1,"max_poc_stars":149,"metasploit":0,"nuclei":0,"refs":[{"date":"2021-03-11T15:27:25Z","kind":"github_poc","ref":"https://github.com/CENSUS/whatsapp-mitd-mitm","stars":149,"title":"PoC and tools for exploiting CVE-2020-6516 (Chrome) and CVE-2021-24027 (WhatsApp)"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Information disclosure in WhatsApp Business for Android","id":"CVE-2021-24027","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Use after free in Facebook Thrift","id":"CVE-2021-24028"},"packages":[],"prev":{"headline":"Memory corruption in WhatsApp Business for Android","id":"CVE-2021-24026"},"products":["WhatsApp Business for Android","WhatsApp for Android"],"published":"2021-04-06","related":[{"cvss_score":9.8,"headline":"WhatsApp VOIP Stack Buffer Overflow","id":"CVE-2019-3568","kev_date_added":"2022-04-19","published":"2019-05-14"},{"cvss_score":8.2,"headline":"WhatsApp Cross-Site Scripting","id":"CVE-2019-18426","kev_date_added":"2022-05-23","published":"2020-01-21"},{"cvss_score":5.4,"headline":"Meta Platforms WhatsApp Incorrect Authorization","id":"CVE-2025-55177","kev_date_added":"2025-09-02","published":"2025-08-29"},{"cvss_score":9.8,"headline":"Integer overflow in WhatsApp Business for Android","id":"CVE-2022-36934","kev_date_added":null,"published":"2022-09-22"},{"cvss_score":9.8,"headline":"Memory corruption in WhatsApp Business for Android","id":"CVE-2021-24042","kev_date_added":null,"published":"2022-01-04"},{"cvss_score":9.8,"headline":"Memory corruption in WhatsApp Business for Android","id":"CVE-2021-24041","kev_date_added":null,"published":"2021-12-07"},{"cvss_score":9.8,"headline":"Memory corruption in WhatsApp Business for Android","id":"CVE-2021-24026","kev_date_added":null,"published":"2021-04-06"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Facebook"]},"summary":"An attacker with device storage access can read cached TLS material from WhatsApp for Android, potentially exposing sensitive communication data.","url":"https://insights.sbomify.com/CVE-2021-24027/"}