{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-26977 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-26977 is a medium-severity vulnerability in Mozilla Firefox Mobile, published on 7 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-26977 and fix it if it is affected.\n\nWhat it is: CVE-2020-26977 is a medium-severity vulnerability in Mozilla Firefox Mobile, published on 7 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-26977 in the wild and no public exploit code.\n\nAffected product: Mozilla Firefox Mobile. 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-2020-26977/ (Markdown: https://insights.sbomify.com/CVE-2020-26977/index.md)","id":"CVE-2020-26977","markdown":"https://insights.sbomify.com/CVE-2020-26977/index.md","name":"CVE-2020-26977","record":{"aliases":["GHSA-qx8w-qf9q-g5vp"],"analysis":{"component_type":"browser","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Firefox for Android","requires_auth":"none","summary":"Attackers can spoof the URL bar in Firefox for Android by connecting to unresponsive ports, misleading users about the active site.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mozilla","cpe":[{"product":"firefox_mobile","vendor":"mozilla"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[],"description":"By attempting to connect a website using an unresponsive port, an attacker could have controlled the content of a tab while the URL bar displayed the original domain. *Note: This issue only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox \u003c 84.","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":"Other in Firefox","id":"CVE-2020-26977","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"mozilla:firefox_mobile","products":["mozilla:firefox_mobile"],"type":"other","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Server-side request forgery in Firefox","id":"CVE-2020-26978"},"packages":[],"prev":{"headline":"Security feature bypass in Firefox","id":"CVE-2020-26976"},"products":["Firefox"],"published":"2021-01-07","related":[{"cvss_score":9.8,"headline":"Other issue in Firefox Focus for Android","id":"CVE-2026-84135","kev_date_added":null,"published":"2026-09-01"},{"cvss_score":9.8,"headline":"Cross-site scripting in Firefox for iOS","id":"CVE-2024-43111","kev_date_added":null,"published":"2024-08-06"},{"cvss_score":9.8,"headline":"Information disclosure in Firefox for iOS","id":"CVE-2023-49060","kev_date_added":null,"published":"2023-11-21"},{"cvss_score":8.8,"headline":"Privilege escalation in Firefox for Android","id":"CVE-2026-92033","kev_date_added":null,"published":"2026-09-15"},{"cvss_score":8.8,"headline":"Privilege escalation in Firefox for Android","id":"CVE-2026-84117","kev_date_added":null,"published":"2026-09-01"},{"cvss_score":8.1,"headline":"Other in Firefox","id":"CVE-2021-29993","kev_date_added":null,"published":"2021-11-03"},{"cvss_score":7.5,"headline":"Information disclosure in the Privacy component in Firefox for Android","id":"CVE-2026-16373","kev_date_added":null,"published":"2026-07-21"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Mozilla"]},"summary":"Attackers can spoof the URL bar in Firefox for Android by connecting to unresponsive ports, misleading users about the active site.","url":"https://insights.sbomify.com/CVE-2020-26977/"}