{"answers":{"affected":"7 open source packages ship an affected version, including openexr and OpenEXR. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-34589 in the wild and no public exploit code.","fix":"Upgrade openexr to a fixed version for your release line: 3.2.7, 3.3.9 or 3.4.9.","what":"CVE-2026-34589 is a high-severity vulnerability in Openexr Openexr, published on 6 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-2026-34589 and fix it if it is affected.\n\nWhat it is: CVE-2026-34589 is a high-severity vulnerability in Openexr Openexr, published on 6 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: There is no known exploitation of CVE-2026-34589 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- openexr (PyPI): affected from 3.2.0; fixed in 3.2.7, 3.3.9, 3.4.9\n- openexr (PyPI): affected from 3.2.0; fixed in 3.2.7\n- openexr (PyPI): affected from 3.3.0; fixed in 3.3.9\n- openexr (PyPI): affected from 3.4.0; fixed in 3.4.9\n- OpenEXR (PyPI): affected from 3.2.0; fixed in 3.2.7\n- OpenEXR (PyPI): affected from 3.3.0; fixed in 3.3.9\n- OpenEXR (PyPI): affected from 3.4.0; fixed in 3.4.9\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-2026-34589/ (Markdown: https://insights.sbomify.com/CVE-2026-34589/index.md)","id":"CVE-2026-34589","markdown":"https://insights.sbomify.com/CVE-2026-34589/index.md","name":"CVE-2026-34589","record":{"aliases":["BELL-CVE-2026-34589","DEBIAN-CVE-2026-34589","GHSA-p8xc-w3q4-h64x","JLSEC-2026-149","PYSEC-2026-2848","ROOT-OS-DEBIAN-11-CVE-2026-34589","ROOT-OS-DEBIAN-12-CVE-2026-34589","ROOT-OS-DEBIAN-13-CVE-2026-34589","UBUNTU-CVE-2026-34589"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"OpenEXR image library","requires_auth":"none","summary":"An integer overflow in the OpenEXR DWA decoder allows heap out-of-bounds writes, potentially leading to code execution or crashes when processing malicious images.","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-787","name":"Out-of-bounds Write"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. For a large enough width, the calculation overflows and later decoder stores operate on a wrapped pointer outside the allocated rowBlock backing store. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.","ecosystems":["PyPI"],"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":"OpenEXR: DWA Lossy Decoder Heap Out-of-Bounds Write","id":"CVE-2026-34589","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"openexr:openexr","products":["openexr:openexr"],"type":"integer_overflow","year":"2026"},"n_packages":7,"n_references":4,"next":{"headline":"Postiz: SSRF via Webhook Creation Endpoint Missing URL Safety Validation","id":"CVE-2026-34590"},"packages":[{"ecosystem":"PyPI","fixed":["3.2.7"],"introduced":["3.2.0"],"last_affected":[],"package":"OpenEXR","purl":null,"source":"GHSA-p8xc-w3q4-h64x"},{"ecosystem":"PyPI","fixed":["3.3.9"],"introduced":["3.3.0"],"last_affected":[],"package":"OpenEXR","purl":null,"source":"GHSA-p8xc-w3q4-h64x"},{"ecosystem":"PyPI","fixed":["3.4.9"],"introduced":["3.4.0"],"last_affected":[],"package":"OpenEXR","purl":null,"source":"GHSA-p8xc-w3q4-h64x"},{"ecosystem":"PyPI","fixed":["3.2.7","3.3.9","3.4.9"],"introduced":["3.2.0","3.3.0","3.4.0"],"last_affected":[],"package":"openexr","purl":"pkg:pypi/openexr","source":"PYSEC-2026-2848"},{"ecosystem":"PyPI","fixed":["3.2.7"],"introduced":["3.2.0"],"last_affected":[],"package":"openexr","purl":"pkg:pypi/openexr","source":"GHSA-p8xc-w3q4-h64x"},{"ecosystem":"PyPI","fixed":["3.3.9"],"introduced":["3.3.0"],"last_affected":[],"package":"openexr","purl":"pkg:pypi/openexr","source":"GHSA-p8xc-w3q4-h64x"},{"ecosystem":"PyPI","fixed":["3.4.9"],"introduced":["3.4.0"],"last_affected":[],"package":"openexr","purl":"pkg:pypi/openexr","source":"GHSA-p8xc-w3q4-h64x"}],"prev":{"headline":"OpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/Write","id":"CVE-2026-34588"},"products":["openexr"],"published":"2026-04-06","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":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["AcademySoftwareFoundation"]},"summary":"An integer overflow in the OpenEXR DWA decoder allows heap out-of-bounds writes, potentially leading to code execution or crashes when processing malicious images.","url":"https://insights.sbomify.com/CVE-2026-34589/"}