{"answers":{"affected":"4 open source packages ship an affected version, including pillow. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-96641 exists.","fix":"Upgrade pillow to 13.0.0 or later.","what":"CVE-2026-96641 is a medium-severity vulnerability in Python Pillow, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-96641 and fix it if it is affected.\n\nWhat it is: CVE-2026-96641 is a medium-severity vulnerability in Python Pillow, published on 21 Oct 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-96641 exists.\n\nAffected packages and fixed versions:\n- pillow (Bitnami): affected all versions; fixed in 13.0.0\n- pillow (PyPI): affected all versions; fixed in 13.0.0\n- pillow (PyPI): affected all versions; fixed in 13.0.0\n- pillow (PyPI): affected all versions; 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-2026-96641/ (Markdown: https://insights.sbomify.com/CVE-2026-96641/index.md)","id":"CVE-2026-96641","markdown":"https://insights.sbomify.com/CVE-2026-96641/index.md","name":"CVE-2026-96641","record":{"aliases":["BIT-pillow-2026-96641","DEBIAN-CVE-2026-96641","ECHO-c62c-e15f-df88","GHSA-4rm8-3hmm-39fg","PYSEC-2026-4340","UBUNTU-CVE-2026-96641"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[{"product":"pillow","vendor":"python"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"Pillow is a Python imaging library. Prior to 13.0.0, PILfont text-width accumulation in src/_imaging.c checks positive glyph advances against INT_MAX but does not check negative advances against INT_MIN. Repeating a signed 16-bit advance of -32768 can therefore execute a signed C integer overflow in xsize += dx, producing a large positive width from a negative mathematical result. Applications that use getlength(), getsize(), or derived layout, quota, serialization, or allocation calculations can experience logic-integrity errors or resource consumption, while the high-level mask path commonly retains a decompression-bomb check. 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":"weaponised"},"has_fix":true,"headline":"Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise","id":"CVE-2026-96641","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: TarIO negative size field causes infinite CPU-spin loop","id":"CVE-2026-96642"},"packages":[{"ecosystem":"Bitnami","fixed":["13.0.0"],"introduced":["0"],"last_affected":[],"package":"pillow","purl":"pkg:bitnami/pillow","source":"BIT-pillow-2026-96641"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["0"],"last_affected":[],"package":"pillow","purl":null,"source":"GHSA-4rm8-3hmm-39fg"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"GHSA-4rm8-3hmm-39fg"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"PYSEC-2026-4340"}],"prev":{"headline":"Pillow PDF append accepts malformed shared page-tree DAG causing resource exhaustion","id":"CVE-2026-96640"},"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-28","vendors":["python-pillow"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-96641/"}