{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-3308 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-3308 is a high-severity vulnerability in Artifex Software Inc. *PyMuPDF* MuPDF, published on 31 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-3308 and fix it if it is affected.\n\nWhat it is: CVE-2026-3308 is a high-severity vulnerability in Artifex Software Inc. *PyMuPDF* MuPDF, published on 31 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-3308 in the wild and no public exploit code.\n\nAffected product: Artifex Software Inc. *PyMuPDF* MuPDF. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-3308/ (Markdown: https://insights.sbomify.com/CVE-2026-3308/index.md)","id":"CVE-2026-3308","markdown":"https://insights.sbomify.com/CVE-2026-3308/index.md","name":"CVE-2026-3308","record":{"aliases":["DEBIAN-CVE-2026-3308","GHSA-6jrq-hjxp-2x5r","UBUNTU-CVE-2026-3308"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"MuPDF library","requires_auth":"none","summary":"An integer overflow in MuPDF allows attackers to execute arbitrary code via a maliciously crafted PDF file.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"An integer overflow vulnerability in 'pdf-image.c' in Artifex's MuPDF version 1.27.0 allows an attacker to maliciously craft a PDF that can trigger an integer overflow within the 'pdf_load_image_imp' function. This allows a heap out-of-bounds write that could be exploited for arbitrary code execution.","ecosystems":[],"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":"CVE-2026-3308","id":"CVE-2026-3308","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Code injection in Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile \u0026 Restrict Content – ProfilePress","id":"CVE-2026-3309"},"packages":[],"prev":{"headline":"Missing authorization in Enterprise Server","id":"CVE-2026-3307"},"products":["MuPDF"],"published":"2026-03-31","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"total"},"state":"PUBLISHED","updated":"2026-04-21","vendors":["Artifex Software Inc. *PyMuPDF*"]},"summary":"An integer overflow in MuPDF allows attackers to execute arbitrary code via a maliciously crafted PDF file.","url":"https://insights.sbomify.com/CVE-2026-3308/"}