{"answers":{"affected":"3 open source packages ship an affected version, including pillow. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-112891 in the wild and no public exploit code.","fix":"Upgrade pillow to 13.0.0 or later.","what":"CVE-2026-112891 is a medium-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-2026-112891 and fix it if it is affected.\n\nWhat it is: CVE-2026-112891 is a medium-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-2026-112891 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pillow (Bitnami): affected from 9.2.0; fixed in 13.0.0\n- pillow (PyPI): affected from 9.2.0; fixed in 13.0.0\n- pillow (PyPI): affected from 9.2.0; 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-2026-112891/ (Markdown: https://insights.sbomify.com/CVE-2026-112891/index.md)","id":"CVE-2026-112891","markdown":"https://insights.sbomify.com/CVE-2026-112891/index.md","name":"CVE-2026-112891","record":{"aliases":["BIT-pillow-2026-112891","DEBIAN-CVE-2026-112891","ECHO-ecd4-ef3e-e3de","GHSA-fc9g-5qg7-mf45","UBUNTU-CVE-2026-112891"],"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 excessive CPU consumption and denial of service by supplying a crafted GIF image with a large comment to applications using Pillow.","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":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 9.2.0 until 13.0.0, Pillow performs quadratic copying when saving a GIF with a long comment. _get_global_header() repeatedly copies portions of comment data while assembling the global header, including comments retained from an untrusted input image. An attacker can supply an image with a large GIF comment to an application that saves it as GIF. This can consume excessive CPU and delay or 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: Quadratic GIF comment copying during save","id":"CVE-2026-112891","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":"Pillow: MSP RLE decoder expands a tiny file into unbounded memory","id":"CVE-2026-112892"},"packages":[{"ecosystem":"Bitnami","fixed":["13.0.0"],"introduced":["9.2.0"],"last_affected":[],"package":"pillow","purl":"pkg:bitnami/pillow","source":"BIT-pillow-2026-112891"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["9.2.0"],"last_affected":[],"package":"pillow","purl":null,"source":"GHSA-fc9g-5qg7-mf45"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["9.2.0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"GHSA-fc9g-5qg7-mf45"}],"prev":{"headline":"CRLF injection in Proxy-Authorization header built from proxy_auth_fun in hackney","id":"CVE-2026-112880"},"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 excessive CPU consumption and denial of service by supplying a crafted GIF image with a large comment to applications using Pillow.","url":"https://insights.sbomify.com/CVE-2026-112891/"}