{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47247 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-47247 is a high-severity vulnerability in strukturag libheif, published on 21 Jul 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-2026-47247 and fix it if it is affected.\n\nWhat it is: CVE-2026-47247 is a high-severity vulnerability in strukturag libheif, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47247 exists.\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-2026-47247/ (Markdown: https://insights.sbomify.com/CVE-2026-47247/index.md)","id":"CVE-2026-47247","markdown":"https://insights.sbomify.com/CVE-2026-47247/index.md","name":"CVE-2026-47247","record":{"aliases":["BELL-CVE-2026-47247","DEBIAN-CVE-2026-47247","ECHO-319a-cd5a-1244","GHSA-2vh6-whr3-cmq3","JLSEC-2026-1096","ROOT-OS-DEBIAN-12-CVE-2026-47247","UBUNTU-CVE-2026-47247"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"HEIF/AVIF image library","requires_auth":"none","summary":"Attackers can leak heap memory, including ASLR-defeating pointers, by uploading crafted AVIF/HEIC files to servers using libheif for image processing.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"libheif","vendor":"struktur"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-908","name":"Use of Uninitialized Resource"},{"id":"CWE-682","name":"Incorrect Calculation"},{"id":"CWE-226","name":"Sensitive Information in Resource Not Removed Before Reuse"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, two bugs in libheif chain to leak process heap memory as visible pixel values in decoded grid images. An attacker who uploads a crafted AVIF/HEIC file to any server-side image processor (WordPress, Sharp/libvips, ImageMagick, etc.) can recover heap data - including library function pointers sufficient to defeat ASLR, or any other secret - from the publicly-downloadable transcoded JPEG/PNG/WebP output. Local attack vectors are also possible. Version 1.22.0 fixes the issue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"libheif Vulnerable to Heap Information Disclosure via Grid Image Gap + Uninitialized Pixel Plane Allocation","id":"CVE-2026-47247","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Parse Server: GraphQL \"Did you mean\" validation suggestions disclose schema to unauthenticated callers","id":"CVE-2026-47248"},"packages":[],"prev":{"headline":"MyBB: Buddy list corruption","id":"CVE-2026-47245"},"products":["libheif"],"published":"2026-07-21","related":[{"cvss_score":8.8,"headline":"libheif: Heap-Buffer-Overflow Write in Grid Tile Chroma Compositing","id":"CVE-2026-32740","kev_date_added":null,"published":"2026-05-19"},{"cvss_score":8.8,"headline":"Null dereference in n/a","id":"CVE-2023-49460","kev_date_added":null,"published":"2023-12-07"},{"cvss_score":8.8,"headline":"Null dereference in n/a","id":"CVE-2023-49462","kev_date_added":null,"published":"2023-12-07"},{"cvss_score":8.8,"headline":"Null dereference in n/a","id":"CVE-2023-49463","kev_date_added":null,"published":"2023-12-07"},{"cvss_score":8.8,"headline":"Null dereference in n/a","id":"CVE-2023-49464","kev_date_added":null,"published":"2023-12-07"},{"cvss_score":8.8,"headline":"Denial of service in n/a","id":"CVE-2020-19498","kev_date_added":null,"published":"2021-07-21"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2020-19499","kev_date_added":null,"published":"2021-07-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-22","vendors":["strukturag"]},"summary":"Attackers can leak heap memory, including ASLR-defeating pointers, by uploading crafted AVIF/HEIC files to servers using libheif for image processing.","url":"https://insights.sbomify.com/CVE-2026-47247/"}