{"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-2026-112391 in the wild and no public exploit code.","fix":"Upgrade pillow to 13.0.0 or later.","what":"CVE-2026-112391 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-2026-112391 and fix it if it is affected.\n\nWhat it is: CVE-2026-112391 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-2026-112391 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-2026-112391/ (Markdown: https://insights.sbomify.com/CVE-2026-112391/index.md)","id":"CVE-2026-112391","markdown":"https://insights.sbomify.com/CVE-2026-112391/index.md","name":"CVE-2026-112391","record":{"aliases":["BIT-pillow-2026-112391","DEBIAN-CVE-2026-112391","ECHO-5241-20a5-d9df","GHSA-254f-3936-288h","UBUNTU-CVE-2026-112391"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Python imaging library","requires_auth":"none","summary":"An attacker can cause a denial of service by providing a deeply nested PDF to applications using Pillow with PDF append enabled.","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":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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's PdfParser.get_value() can recurse without a limit while reading nested PDF objects. The parser follows attacker-controlled arrays and dictionaries when an existing PDF is opened for append. An attacker can provide a deeply nested PDF to an application that saves an image with PDF append enabled. This can raise an uncaught RecursionError or terminate the worker, causing denial of 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: PdfParser can recurse without limit in get_value() and linearize_page_tree()","id":"CVE-2026-112391","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: NULL dereference in ImagingExpand via rank filters on zero-size images","id":"CVE-2026-112392"},"packages":[{"ecosystem":"Bitnami","fixed":["13.0.0"],"introduced":["5.1.0"],"last_affected":[],"package":"pillow","purl":"pkg:bitnami/pillow","source":"BIT-pillow-2026-112391"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["5.1.0"],"last_affected":[],"package":"Pillow","purl":null,"source":"GHSA-254f-3936-288h"},{"ecosystem":"PyPI","fixed":["13.0.0"],"introduced":["5.1.0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"GHSA-254f-3936-288h"}],"prev":{"headline":"Pillow: Infinite loop in MIC n_frames when the embedded TIFF","id":"CVE-2026-112390"},"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-20","vendors":["python-pillow"]},"summary":"An attacker can cause a denial of service by providing a deeply nested PDF to applications using Pillow with PDF append enabled.","url":"https://insights.sbomify.com/CVE-2026-112391/"}