{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-54240 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-54240 is a high-severity vulnerability in strukturag libde265, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54240 and fix it if it is affected.\n\nWhat it is: CVE-2026-54240 is a high-severity vulnerability in strukturag libde265, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-54240 in the wild and no public exploit code.\n\nAffected product: strukturag libde265. 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-2026-54240/ (Markdown: https://insights.sbomify.com/CVE-2026-54240/index.md)","id":"CVE-2026-54240","markdown":"https://insights.sbomify.com/CVE-2026-54240/index.md","name":"CVE-2026-54240","record":{"aliases":["ALPINE-CVE-2026-54240","BELL-CVE-2026-54240","DEBIAN-CVE-2026-54240","ECHO-48af-523d-62b5","GHSA-ccfw-29x7-rrx3","MINI-wrq7-4x2v-7g7h","ROOT-OS-DEBIAN-11-CVE-2026-54240","UBUNTU-CVE-2026-54240"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"HEVC video codec library","requires_auth":"none","summary":"A crafted HEVC stream triggers an integer overflow in libde265, leading to heap out-of-bounds reads or writes that can cause crashes or code execution.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate pixel offsets, allowing a crafted HEVC stream with large image dimensions to trigger an integer overflow and cause out-of-bounds heap reads or writes, potentially disclosing data, corrupting memory, or crashing the decoder. Version 1.1.1 contains a patch.","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":"libde265: Pixel accessor signed integer overflow causes heap OOB read/write","id":"CVE-2026-54240","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"libde265: SAO sequential filter heap buffer overflow via signed integer overflow","id":"CVE-2026-54241"},"packages":[],"prev":{"headline":"FaustWP — Authentication Bypass via Initialization Vector Modification in Token Envelope","id":"CVE-2026-54239"},"products":["libde265"],"published":"2026-09-11","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":"partial"},"state":"PUBLISHED","updated":"2026-09-14","vendors":["strukturag"]},"summary":"A crafted HEVC stream triggers an integer overflow in libde265, leading to heap out-of-bounds reads or writes that can cause crashes or code execution.","url":"https://insights.sbomify.com/CVE-2026-54240/"}