{"answers":{"affected":"2 open source packages ship an affected version, including pypdf.","exploited":"There is no known exploitation of CVE-2026-113791 in the wild and no public exploit code.","fix":"Upgrade pypdf to 6.21.0 or later.","what":"CVE-2026-113791 is a medium-severity vulnerability in py-pdf pypdf, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-113791 and fix it if it is affected.\n\nWhat it is: CVE-2026-113791 is a medium-severity vulnerability in py-pdf pypdf, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-113791 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pypdf (PyPI): affected all versions; fixed in 6.21.0\n- pypdf (PyPI): affected all versions; fixed in 6.21.0\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-2026-113791/ (Markdown: https://insights.sbomify.com/CVE-2026-113791/index.md)","id":"CVE-2026-113791","markdown":"https://insights.sbomify.com/CVE-2026-113791/index.md","name":"CVE-2026-113791","record":{"aliases":["DEBIAN-CVE-2026-113791","ECHO-42ce-a9e3-9ad4","GHSA-cgf9-327m-v77c","UBUNTU-CVE-2026-113791"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing a content stream with many small operations, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.","ecosystems":["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":"pypdf: Possible large memory usage when parsing content streams","id":"CVE-2026-113791","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"pypdf: Possible infinite loop in PdfWriter.find_outline_item","id":"CVE-2026-113792"},"packages":[{"ecosystem":"PyPI","fixed":["6.21.0"],"introduced":["0"],"last_affected":[],"package":"pypdf","purl":null,"source":"GHSA-cgf9-327m-v77c"},{"ecosystem":"PyPI","fixed":["6.21.0"],"introduced":["0"],"last_affected":[],"package":"pypdf","purl":"pkg:pypi/pypdf","source":"GHSA-cgf9-327m-v77c"}],"prev":{"headline":"pypdf: Possible large memory usage when parsing arrays and dictionaries","id":"CVE-2026-113790"},"products":["pypdf"],"published":"2026-10-21","related":[],"sources":[{"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["py-pdf"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-113791/"}