{"answers":{"affected":"4 open source packages ship an affected version, including pillow and Pillow. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-96643 in the wild and no public exploit code.","fix":"Upgrade pillow to 13.0.0 or later.","what":"CVE-2026-96643 is a high-severity vulnerability in Python Pillow, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-96643 and fix it if it is affected.\n\nWhat it is: CVE-2026-96643 is a high-severity vulnerability in Python Pillow, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-96643 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pillow (Bitnami): affected from 11.0.0; fixed in 13.0.0\n- pillow (PyPI): affected from 11.0.0; fixed in 13.0.0\n- pillow (PyPI): affected from 11.0.0; fixed in 13.0.0\n- Pillow (PyPI): affected from 11.0.0; fixed in 13.0.0\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-2026-96643/ (Markdown: https://insights.sbomify.com/CVE-2026-96643/index.md)","id":"CVE-2026-96643","markdown":"https://insights.sbomify.com/CVE-2026-96643/index.md","name":"CVE-2026-96643","record":{"aliases":["BIT-pillow-2026-96643","DEBIAN-CVE-2026-96643","ECHO-712f-aaf2-685e","GHSA-g4qv-2jxx-769h","PYSEC-2026-4342","ROOT-APP-PYPI-CVE-2026-96643","UBUNTU-CVE-2026-96643"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[{"product":"pillow","vendor":"python"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-407","name":"Inefficient Algorithmic Complexity"}],"description":"Pillow is a Python imaging library. From 11.0.0 until 13.0.0, Exif.load() in src/PIL/Image.py repeatedly slices the remaining EXIF data while it begins with the six-byte Exif header. src/PIL/PngImagePlugin.py accepts an uncapped PNG eXIf chunk, so a file filled with repeated headers causes a new shrinking copy on every iteration and quadratic CPU work. The condition is reachable through Image.getexif(), Image._getexif(), and ImageOps.exif_transpose(), including common photo-upload rotation workflows. This issue is fixed in version 13.0.0.","ecosystems":["Bitnami","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":"Pillow: PNG eXIf chunk makes EXIF parsing run in quadratic time","id":"CVE-2026-96643","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"python:pillow","products":["python:pillow"],"type":null,"year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"Pillow: Heap over-read in WMF/EMF rendering via 16-bit dimension truncation (Windows builds)","id":"CVE-2026-96644"},"packages":[{"ecosystem":"Bitnami","fixed":["13.0.0"],"introduced":["11.0.0"],"last_affected":[],"package":"pillow","purl":"pkg:bitnami/pillow","source":"BIT-pillow-2026-96643"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["11.0.0"],"last_affected":[],"package":"Pillow","purl":null,"source":"GHSA-g4qv-2jxx-769h"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["11.0.0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"GHSA-g4qv-2jxx-769h"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["11.0.0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"PYSEC-2026-4342"}],"prev":{"headline":"Pillow: TarIO negative size field causes infinite CPU-spin loop","id":"CVE-2026-96642"},"products":["Pillow"],"published":"2026-10-21","related":[{"cvss_score":10,"headline":"Pillow command injection","id":"CVE-2014-3007","kev_date_added":null,"published":"2014-04-27"},{"cvss_score":9.8,"headline":"Pillow multi-frame loaders can reuse stale native image storage after mode transitions","id":"CVE-2026-96639","kev_date_added":null,"published":"2026-10-21"},{"cvss_score":9.8,"headline":"Buffer over-flow in Pillow","id":"CVE-2022-30595","kev_date_added":null,"published":"2022-05-25"},{"cvss_score":9.8,"headline":"Out of bounds write in Pillow","id":"CVE-2021-25289","kev_date_added":null,"published":"2021-03-19"},{"cvss_score":9.8,"headline":"Pillow Integer overflow in ImagingResampleHorizontal","id":"CVE-2016-4009","kev_date_added":null,"published":"2016-04-13"},{"cvss_score":9.2,"headline":"Pillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO","id":"CVE-2026-112393","kev_date_added":null,"published":"2026-10-19"},{"cvss_score":9.2,"headline":"Pillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code execution","id":"CVE-2026-112398","kev_date_added":null,"published":"2026-10-19"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-23","vendors":["python-pillow"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-96643/"}