{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-120208 in the wild and no public exploit code.","exposure":"","fix":"Upgrade to a fixed version.","what":"CVE-2026-120208 is a high-severity vulnerability in strukturag libheif, published on 31 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-120208 and fix it if it is affected.\n\nWhat it is: CVE-2026-120208 is a high-severity vulnerability in strukturag libheif, published on 31 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-120208 in the wild and no public exploit code.\n\nAffected product: strukturag libheif. 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-2026-120208/ (Markdown: https://insights.sbomify.com/CVE-2026-120208/index.md)","id":"CVE-2026-120208","markdown":"https://insights.sbomify.com/CVE-2026-120208/index.md","name":"CVE-2026-120208","record":{"aliases":["DEBIAN-CVE-2026-120208","GHSA-wqmc-6h9q-v6wp","GHSA-x8r2-mggj-j6wr","ROOT-OS-DEBIAN-12-CVE-2026-120208","UBUNTU-CVE-2026-120208","USN-9012-1"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"libheif 1.18.0 before 1.23.3 contains a heap-based buffer overflow vulnerability in unc_decoder_mixed_interleave::processTile() that allows attackers to write out of bounds by supplying chroma components with unequal bit depths. Attackers can craft a HEIF file declaring, for example, 16-bit Cb and 8-bit Cr to trigger file-controlled heap writes past the Cr plane, potentially achieving code execution in image-processing pipelines.","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":"libheif 1.18.0 before 1.23.3 Heap Buffer Overflow via unci Mixed-Interleave Decoder","id":"CVE-2026-120208","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"AJ-Report through 1.7.1 Authentication Bypass leading to RCE via Share-Token","id":"CVE-2026-120209"},"nickname":null,"packages":[],"prev":{"headline":"Thelia Page Module before 2.0.4 CSRF via Page Tag, Document and Image Delete Routes","id":"CVE-2026-120207"},"products":["libheif"],"published":"2026-10-31","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":"2026-11-02","vendors":["strukturag"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-120208/"}