{"answers":{"affected":"3 open source packages ship an affected version, including pypdf. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-24688 in the wild and no public exploit code.","fix":"Upgrade pypdf to 6.6.2 or later.","what":"CVE-2026-24688 is a medium-severity denial of service vulnerability in Pypdf Project Pypdf, published on 27 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-24688 and fix it if it is affected.\n\nWhat it is: CVE-2026-24688 is a medium-severity denial of service vulnerability in Pypdf Project Pypdf, published on 27 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-24688 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pypdf (PyPI): affected all versions; fixed in 6.6.2\n- pypdf (PyPI): affected all versions; fixed in 6.6.2\n- pypdf (PyPI): affected all versions; fixed in 6.6.2\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-2026-24688/ (Markdown: https://insights.sbomify.com/CVE-2026-24688/index.md)","id":"CVE-2026-24688","markdown":"https://insights.sbomify.com/CVE-2026-24688/index.md","name":"CVE-2026-24688","record":{"aliases":["DEBIAN-CVE-2026-24688","GHSA-2q4j-m29v-hq73","PYSEC-2026-1827","ROOT-APP-PYPI-CVE-2026-24688","UBUNTU-CVE-2026-24688","openSUSE-SU-2026:10116-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Python PDF library","requires_auth":"none","summary":"An attacker can cause a denial of service via an infinite loop in pypdf by crafting a malicious PDF with specific outlines or bookmarks.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"pypdf","vendor":"pypdf_project"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/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-835","name":"Loop with Unreachable Exit Condition"}],"description":"pypdf is a free and open-source pure-python PDF library. An attacker who uses an infinite loop vulnerability that is present in versions prior to 6.6.2 can craft a PDF which leads to an infinite loop. This requires accessing the outlines/bookmarks. This has been fixed in pypdf 6.6.2. If projects cannot upgrade yet, consider applying the changes from PR #3610 manually.","ecosystems":["PyPI","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2026-01-27","github_poc":2,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-01-27T08:44:59Z","kind":"github_poc","ref":"https://github.com/JoakimBulow/CVE-2026-24688","stars":0,"title":"CVE-2026-24688 - pypdf - DoS - POC "},{"date":"2026-06-21T14:31:41Z","kind":"github_poc","ref":"https://github.com/Fomovet/cve-2026-24688","stars":0,"title":"POC for CVE-2026-24688"}],"tier":"poc_unverified"},"has_fix":true,"headline":"pypdf has possible Infinite Loop when processing outlines/bookmarks","id":"CVE-2026-24688","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"pypdf_project:pypdf","products":["pypdf_project:pypdf"],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"Copeland XWEB and XWEB Pro OS Command Injection","id":"CVE-2026-24689"},"packages":[{"ecosystem":"PyPI","fixed":["6.6.2"],"introduced":["0"],"last_affected":[],"package":"pypdf","purl":null,"source":"GHSA-2q4j-m29v-hq73"},{"ecosystem":"PyPI","fixed":["6.6.2"],"introduced":["0"],"last_affected":[],"package":"pypdf","purl":"pkg:pypi/pypdf","source":"GHSA-2q4j-m29v-hq73"},{"ecosystem":"PyPI","fixed":["6.6.2"],"introduced":["0"],"last_affected":[],"package":"pypdf","purl":"pkg:pypi/pypdf","source":"PYSEC-2026-1827"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["6.6.2-1.1"],"introduced":["0"],"last_affected":[],"package":"python-pypdf","purl":"pkg:rpm/opensuse/python-pypdf\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10116-1"}],"prev":{"headline":"Umbraco.Forms has path traversal and file enumeration vulnerability in Linux/Mac","id":"CVE-2026-24687"},"products":["pypdf"],"published":"2026-01-27","related":[{"cvss_score":8.7,"headline":"pypdf: Possible large memory usage when retrieving Roman page labels","id":"CVE-2026-102993","kev_date_added":null,"published":"2026-09-30"},{"cvss_score":8.7,"headline":"pypdf: Possible long runtimes/large memory usage when parsing indirect objects","id":"CVE-2026-102994","kev_date_added":null,"published":"2026-09-30"},{"cvss_score":8.7,"headline":"pypdf: Possible large memory usage for large /ToUnicode streams (Follow-up 2)","id":"CVE-2026-102995","kev_date_added":null,"published":"2026-09-30"},{"cvss_score":8.7,"headline":"pypdf: Possible large memory usage when parsing font data","id":"CVE-2026-102996","kev_date_added":null,"published":"2026-09-30"},{"cvss_score":8.7,"headline":"pypdf: Possible long runtimes for partially malformed FlateDecode streams (Follow-up)","id":"CVE-2026-102997","kev_date_added":null,"published":"2026-09-30"},{"cvss_score":8.7,"headline":"pypdf: Possible long runtimes when generating appearance streams","id":"CVE-2026-102998","kev_date_added":null,"published":"2026-09-30"},{"cvss_score":8.7,"headline":"pypdf: Possible long runtimes with large amount of embedded files","id":"CVE-2026-102999","kev_date_added":null,"published":"2026-09-30"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-27","vendors":["py-pdf"]},"summary":"An attacker can cause a denial of service via an infinite loop in pypdf by crafting a malicious PDF with specific outlines or bookmarks.","url":"https://insights.sbomify.com/CVE-2026-24688/"}