{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-126132 in the wild and no public exploit code.","exposure":"","fix":"Upgrade to a fixed version.","what":"CVE-2026-126132 is a vulnerability in Mozilla Thunderbird, published on 10 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-126132 and fix it if it is affected.\n\nWhat it is: CVE-2026-126132 is a vulnerability in Mozilla Thunderbird, published on 10 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-126132 in the wild and no public exploit code.\n\nAffected product: Mozilla Thunderbird. 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-2026-126132/ (Markdown: https://insights.sbomify.com/CVE-2026-126132/index.md)","id":"CVE-2026-126132","markdown":"https://insights.sbomify.com/CVE-2026-126132/index.md","name":"CVE-2026-126132","record":{"aliases":["DEBIAN-CVE-2026-126132","GHSA-m77w-xfm2-m3w5","UBUNTU-CVE-2026-126132"],"analysis":null,"analysis_generated_by":null,"assigner":"mozilla","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"When a message was forwarded inline, edited as new, or had an attachment dragged into a compose window, a specially crafted link attachment (a .desktop file on Linux, or a .url or .lnk file on Windows) was replaced with the content of the file or URL it pointed to when the message was saved or sent. This could disclose local files, or content from the user's network, to the message recipients or to the mail provider.\nThis bug only affects Thunderbird on Linux and Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 160 and Thunderbird 153.7.","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":"Attachments could be replaced with local file content when forwarding","id":"CVE-2026-126132","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Calendar server credentials could be sent to an HTTP proxy","id":"CVE-2026-126133"},"nickname":null,"packages":[],"prev":{"headline":"The Auth0 ASP.NET Core Authentication SDK incorrectly determines a session's OIDC Back-Channel Logout status, which may result in a logged-o","id":"CVE-2026-126129"},"products":["Thunderbird"],"published":"2026-11-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-11-10","vendors":["Mozilla"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-126132/"}