{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-77219 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-77219 is a medium-severity vulnerability in GNU Emacs, published on 21 Aug 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-2026-77219 and fix it if it is affected.\n\nWhat it is: CVE-2026-77219 is a medium-severity vulnerability in GNU Emacs, published on 21 Aug 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-2026-77219 in the wild and no public exploit code.\n\nAffected product: GNU Emacs. 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-2026-77219/ (Markdown: https://insights.sbomify.com/CVE-2026-77219/index.md)","id":"CVE-2026-77219","markdown":"https://insights.sbomify.com/CVE-2026-77219/index.md","name":"CVE-2026-77219","record":{"aliases":["AZL-96986","DEBIAN-CVE-2026-77219","GHSA-q8pr-2495-3jw7","OESA-2026-4083","UBUNTU-CVE-2026-77219"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GNU Emacs","requires_auth":"none","summary":"An integer overflow in the image loader allows attackers to leak heap memory contents by supplying a crafted image file.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"},{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signed integer arithmetic; for sufficiently large values, the result wraps to a negative number, bypassing the bounds check and causing the pixel reader to access heap memory past the end of the allocated buffer. The over-read contents are interpreted as pixel color values and rendered on screen.","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":"GNU Emacs \u003c 31.0.91 Heap Over-Read via PBM/PPM/PGM Image Loader","id":"CVE-2026-77219","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"PDFio \u003c 1.6.5 Dangling Pointer via Dictionary String-Formatting","id":"CVE-2026-77220"},"packages":[],"prev":{"headline":"PLANET GS-4210-16P2S V3 Stack Buffer Overflow via dispatcher.cgi Credential Handlers","id":"CVE-2026-77218"},"products":["Emacs"],"published":"2026-08-21","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":"partial"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["GNU"]},"summary":"An integer overflow in the image loader allows attackers to leak heap memory contents by supplying a crafted image file.","url":"https://insights.sbomify.com/CVE-2026-77219/"}