{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34545 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-34545 is a high-severity vulnerability in Openexr Openexr, published on 1 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-34545 and fix it if it is affected.\n\nWhat it is: CVE-2026-34545 is a high-severity vulnerability in Openexr Openexr, published on 1 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34545 exists.\n\nAffected product: Openexr Openexr. 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-2026-34545/ (Markdown: https://insights.sbomify.com/CVE-2026-34545/index.md)","id":"CVE-2026-34545","markdown":"https://insights.sbomify.com/CVE-2026-34545/index.md","name":"CVE-2026-34545","record":{"aliases":["BELL-CVE-2026-34545","DEBIAN-CVE-2026-34545","GHSA-ghfj-fx47-wg97","JLSEC-2026-147","ROOT-OS-DEBIAN-11-CVE-2026-34545","ROOT-OS-DEBIAN-12-CVE-2026-34545","ROOT-OS-DEBIAN-13-CVE-2026-34545","UBUNTU-CVE-2026-34545"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"OpenEXR image library","requires_auth":"none","summary":"An attacker can achieve remote code execution by providing a crafted EXR file with HTJ2K compression, exploiting an integer overflow in the decoder.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"openexr","vendor":"openexr"}],"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:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1284","name":"Improper Validation of Specified Quantity in Input"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.","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":"OpenEXR: integer overflow lead to OOB in HTJ2K decoder","id":"CVE-2026-34545","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"openexr:openexr","products":["openexr:openexr"],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"iccDEV: UB at TiffImg.h","id":"CVE-2026-34546"},"packages":[],"prev":{"headline":"OpenEXR: integer overflow to OOB write in uncompress_b44_impl()","id":"CVE-2026-34544"},"products":["openexr"],"published":"2026-04-01","related":[{"cvss_score":9.1,"headline":"OpenEXR Heap Overflow in Scanline Deep Data Parsing","id":"CVE-2023-5841","kev_date_added":null,"published":"2024-02-01"},{"cvss_score":8.8,"headline":"OpenEXR is Vulnerable to Integer overflow in ImageChannel::resize leads to heap OOB write via OpenEXRUtil public API","id":"CVE-2026-41142","kev_date_added":null,"published":"2026-05-07"},{"cvss_score":8.8,"headline":"OpenEXR: Out-of-bounds read in `IDManifest::init()` during prefix expansion","id":"CVE-2026-42216","kev_date_added":null,"published":"2026-05-07"},{"cvss_score":8.8,"headline":"OpenEXR invalid write","id":"CVE-2017-9111","kev_date_added":null,"published":"2017-05-21"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2017-9113","kev_date_added":null,"published":"2017-05-21"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2017-9115","kev_date_added":null,"published":"2017-05-21"},{"cvss_score":8.7,"headline":"OpenEXR: Heap information disclosure in PXR24 decompression via unchecked decompressed size (undo_pxr24_impl)","id":"CVE-2026-34543","kev_date_added":null,"published":"2026-04-01"}],"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["AcademySoftwareFoundation"]},"summary":"An attacker can achieve remote code execution by providing a crafted EXR file with HTJ2K compression, exploiting an integer overflow in the decoder.","url":"https://insights.sbomify.com/CVE-2026-34545/"}