{"answers":{"affected":"3 open source packages ship an affected version, including pillow and Pillow. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-112406 in the wild and no public exploit code.","fix":"Upgrade pillow to 13.0.0 or later.","what":"CVE-2026-112406 is a high-severity denial of service 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-2026-112406 and fix it if it is affected.\n\nWhat it is: CVE-2026-112406 is a high-severity denial of service 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: There is no known exploitation of CVE-2026-112406 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pillow (Bitnami): affected from 5.1.0; fixed in 13.0.0\n- pillow (PyPI): affected from 5.1.0; fixed in 13.0.0\n- Pillow (PyPI): affected from 5.1.0; 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-2026-112406/ (Markdown: https://insights.sbomify.com/CVE-2026-112406/index.md)","id":"CVE-2026-112406","markdown":"https://insights.sbomify.com/CVE-2026-112406/index.md","name":"CVE-2026-112406","record":{"aliases":["BIT-pillow-2026-112406","DEBIAN-CVE-2026-112406","ECHO-6350-5938-a46a","GHSA-f2g6-542v-9j58","ROOT-APP-PYPI-CVE-2026-112406","UBUNTU-CVE-2026-112406"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python imaging library","requires_auth":"none","summary":"An attacker can cause a denial of service by supplying a cyclic PDF to applications using Pillow, leading to an infinite loop and high CPU usage.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"pillow","vendor":"python"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow can enter an infinite loop while rewriting PDF pages. PdfParser.rewrite_pages() follows Parent relationships without detecting a cycle in the page tree. An attacker can supply a cyclic PDF to an application that appends an image to that PDF. This can hold the worker at full CPU and deny service. 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: Infinite loop in PdfParser.rewrite_pages on page tree Parent cycle","id":"CVE-2026-112406","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"python:pillow","products":["python:pillow"],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Incorrect privilege assignment in AWS CICD-toolchain-for-serverless-applications","id":"CVE-2026-112407"},"packages":[{"ecosystem":"Bitnami","fixed":["13.0.0"],"introduced":["5.1.0"],"last_affected":[],"package":"pillow","purl":"pkg:bitnami/pillow","source":"BIT-pillow-2026-112406"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["5.1.0"],"last_affected":[],"package":"Pillow","purl":null,"source":"GHSA-f2g6-542v-9j58"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["5.1.0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"GHSA-f2g6-542v-9j58"}],"prev":{"headline":"Pillow: NULL pointer dereference in Image.merge via an unvalidated band 0","id":"CVE-2026-112405"},"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 _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":"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":"2026-10-20","vendors":["python-pillow"]},"summary":"An attacker can cause a denial of service by supplying a cyclic PDF to applications using Pillow, leading to an infinite loop and high CPU usage.","url":"https://insights.sbomify.com/CVE-2026-112406/"}