{"answers":{"affected":"3 open source packages ship an affected version, including pillow and Pillow. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112393 exists.","fix":"Upgrade pillow to 13.0.0 or later.","what":"CVE-2026-112393 is a critical memory corruption vulnerability in Python Pillow, published on 19 Oct 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-2026-112393 and fix it if it is affected.\n\nWhat it is: CVE-2026-112393 is a critical memory corruption vulnerability in Python Pillow, published on 19 Oct 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-2026-112393 exists.\n\nAffected packages and fixed versions:\n- pillow (Bitnami): affected from 2.0.0; fixed in 13.0.0\n- pillow (PyPI): affected from 2.0.0; fixed in 13.0.0\n- Pillow (PyPI): affected from 2.0.0; 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-2026-112393/ (Markdown: https://insights.sbomify.com/CVE-2026-112393/index.md)","id":"CVE-2026-112393","markdown":"https://insights.sbomify.com/CVE-2026-112393/index.md","name":"CVE-2026-112393","record":{"aliases":["BIT-pillow-2026-112393","DEBIAN-CVE-2026-112393","ECHO-f908-0ef4-c858","GHSA-332p-7hrc-92wf","ROOT-APP-PYPI-CVE-2026-112393","UBUNTU-CVE-2026-112393"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Python imaging library","requires_auth":"none","summary":"Heap buffer overflow in Pillow allows attackers to execute code or disclose memory when saving TIFF images to BytesIO targets.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"pillow","vendor":"python"}],"cvss":{"score":9.2,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Pillow is a Python imaging library. From 2.0.0 until 13.0.0, Pillow has a heap buffer overflow and stale-heap disclosure in _tiffWriteProc when saving compressed TIFF data through libtiff to a target without a usable fileno(), such as BytesIO. The callback sizes its allocation from the prior buffer size instead of the current write position, allowing an attacker-controlled out-of-line TIFF tag or retained ICC profile to be copied beyond the allocation after libtiff seeks forward. This overflow can crash the process and may allow code execution. Independently, unwritten alignment gaps in compressed TIFF output larger than 64 KiB can disclose stale heap bytes without a crafted tag. File paths and targets with real file descriptors are unaffected. 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: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO","id":"CVE-2026-112393","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"python:pillow","products":["python:pillow"],"type":"memory_corruption","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Pillow: P;2L and P;4L decoders may read 1 to 3 bytes past the passed buffer size","id":"CVE-2026-112394"},"packages":[{"ecosystem":"Bitnami","fixed":["13.0.0"],"introduced":["2.0.0"],"last_affected":[],"package":"pillow","purl":"pkg:bitnami/pillow","source":"BIT-pillow-2026-112393"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["2.0.0"],"last_affected":[],"package":"Pillow","purl":null,"source":"GHSA-332p-7hrc-92wf"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["2.0.0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"GHSA-332p-7hrc-92wf"}],"prev":{"headline":"Pillow: NULL dereference in ImagingExpand via rank filters on zero-size images","id":"CVE-2026-112392"},"products":["Pillow"],"published":"2026-10-19","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 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":"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":"2026-10-19","vendors":["python-pillow"]},"summary":"Heap buffer overflow in Pillow allows attackers to execute code or disclose memory when saving TIFF images to BytesIO targets.","url":"https://insights.sbomify.com/CVE-2026-112393/"}