{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-2781 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-2781 is a high-severity vulnerability in Mozilla Firefox, published on 24 Feb 2026. 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-2026-2781 and fix it if it is affected.\n\nWhat it is: CVE-2026-2781 is a high-severity vulnerability in Mozilla Firefox, published on 24 Feb 2026. 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-2026-2781 in the wild and no public exploit code.\n\nAffected product: Mozilla Firefox. 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-2026-2781/ (Markdown: https://insights.sbomify.com/CVE-2026-2781/index.md)","id":"CVE-2026-2781","markdown":"https://insights.sbomify.com/CVE-2026-2781/index.md","name":"CVE-2026-2781","record":{"aliases":["BELL-CVE-2026-2781","DEBIAN-CVE-2026-2781","DLA-4508-1","DSA-6149-1","ECHO-c6c4-6d91-e895","GHSA-q6rm-rhj9-jpg5","SUSE-SU-2026:0740-1","SUSE-SU-2026:0813-1","SUSE-SU-2026:0814-1","UBUNTU-CVE-2026-2781","USN-8071-1"],"analysis":{"component_type":"browser","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Mozilla Firefox","requires_auth":"none","summary":"An integer overflow in the NSS libraries allows attackers to potentially execute arbitrary code or cause a denial of service in Firefox and Thunderbird.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mozilla","cpe":[{"product":"firefox","vendor":"mozilla"},{"product":"thunderbird","vendor":"mozilla"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.","ecosystems":["SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","SUSE:Linux Enterprise Micro 5.2","SUSE:Linux Enterprise Micro 5.3","SUSE:Linux Enterprise Micro 5.4","SUSE:Linux Enterprise Micro 5.5","SUSE:Linux Enterprise Module for Basesystem 15 SP7","SUSE:Linux Enterprise Server 12 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server 15 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP6-LTSS","SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP6","openSUSE:Leap 15.6"],"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":"Integer overflow in the Libraries component in NSS","id":"CVE-2026-2781","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"mozilla:firefox","products":["mozilla:firefox","mozilla:thunderbird"],"type":"integer_overflow","year":"2026"},"n_packages":18,"n_references":6,"next":{"headline":"Privilege escalation in the Netmonitor component","id":"CVE-2026-2782"},"packages":[{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOS","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSS","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.2","fixed":["3.112.3-150000.3.135.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.2","source":"SUSE-SU-2026:0740-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.3","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.3","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.4","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.4","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.5","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.5","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5-LTSS","fixed":["3.112.3-58.136.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS","source":"SUSE-SU-2026:0814-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP5-LTSS","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","fixed":["3.112.3-58.136.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5","source":"SUSE-SU-2026:0814-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP4","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP5","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP6","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/suse/mozilla-nss\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6","source":"SUSE-SU-2026:0813-1"},{"ecosystem":"openSUSE:Leap 15.6","fixed":["3.112.3-150400.3.63.1"],"introduced":["0"],"last_affected":[],"package":"mozilla-nss","purl":"pkg:rpm/opensuse/mozilla-nss\u0026distro=openSUSE%20Leap%2015.6","source":"SUSE-SU-2026:0813-1"}],"prev":{"headline":"Privilege escalation in the Netmonitor component","id":"CVE-2026-2780"},"products":["Firefox","Thunderbird"],"published":"2026-02-24","related":[{"cvss_score":10,"headline":"Mozilla Firefox and Thunderbird Sandbox Escape","id":"CVE-2019-11708","kev_date_added":"2022-05-23","published":"2019-07-23"},{"cvss_score":9.8,"headline":"Mozilla Multiple Products Remote Code Execution","id":"CVE-2010-3765","kev_date_added":"2025-10-06","published":"2010-10-27"},{"cvss_score":9.6,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2022-26486","kev_date_added":"2022-03-07","published":"2022-12-22"},{"cvss_score":8.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2022-26485","kev_date_added":"2022-03-07","published":"2022-12-22"},{"cvss_score":8.8,"headline":"Mozilla Firefox and Thunderbird Type Confusion","id":"CVE-2019-11707","kev_date_added":"2022-05-23","published":"2019-07-23"},{"cvss_score":8.1,"headline":"Mozilla Firefox And Thunderbird Use-After-Free","id":"CVE-2020-6819","kev_date_added":"2021-11-03","published":"2020-04-24"},{"cvss_score":8.1,"headline":"Mozilla Firefox And Thunderbird Use-After-Free","id":"CVE-2020-6820","kev_date_added":"2021-11-03","published":"2020-04-24"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-21","vendors":["Mozilla"]},"summary":"An integer overflow in the NSS libraries allows attackers to potentially execute arbitrary code or cause a denial of service in Firefox and Thunderbird.","url":"https://insights.sbomify.com/CVE-2026-2781/"}