{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-16477 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-16477 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-16477 is a high-severity vulnerability in MTW CleanShot X, published on 22 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-16477 and fix it if it is affected.\n\nWhat it is: CVE-2026-16477 is a high-severity vulnerability in MTW CleanShot X, published on 22 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-16477 in the wild and no public exploit code.\n\nAffected product: MTW CleanShot X. 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-2026-16477/ (Markdown: https://insights.sbomify.com/CVE-2026-16477/index.md)","id":"CVE-2026-16477","markdown":"https://insights.sbomify.com/CVE-2026-16477/index.md","name":"CVE-2026-16477","record":{"aliases":["GHSA-9gj2-4mhg-73v2"],"analysis":null,"analysis_generated_by":null,"assigner":"CERT-PL","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"CleanShot X for macOS insecurely deserializes untrusted data embedded in a .cleanshot project file (editable screenshot annotations). Exploitation requires an attacker to craft a malicious .cleanshot file, deliver it to the target, and have the target open it; the payload then executes automatically during parsing, resulting in arbitrary code execution in the context of the current user. Users who have never opened a .cleanshot file from an untrusted source are not affected by this vulnerability. This vulnerability was fixed in versions: 4.5.2, 4.6.3, 4.7.8 and 4.8.10","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Insecure Deserialization of .cleanshot Files in CleanShot X","id":"CVE-2026-16477","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Missing authorization in Db2","id":"CVE-2026-16480"},"packages":[],"prev":{"headline":"Sbc: sbc: heap out-of-bounds read via crafted sbc audio frame","id":"CVE-2026-16473"},"products":["CleanShot X"],"published":"2026-10-22","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-10-22","vendors":["MTW"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-16477/"}