{"id":"OESA-2026-4083","summary":"emacs security update","details":"Emacs is the extensible, customizable, self-documenting real-time display editor. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. And it is an entire ecosystem of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, and more.\r\n\r\nSecurity Fix(es):\n\nGNU 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.(CVE-2026-77219)","modified":"2026-09-25T01:45:10.352237642Z","published":"2026-09-25T01:28:13Z","upstream":["CVE-2026-77219"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4083"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77219"}],"affected":[{"package":{"name":"emacs","ecosystem":"openEuler:22.03-LTS-SP4","purl":"pkg:rpm/openEuler/emacs&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"27.2-19.oe2203sp4"}]}],"ecosystem_specific":{"x86_64":["emacs-27.2-19.oe2203sp4.x86_64.rpm","emacs-common-27.2-19.oe2203sp4.x86_64.rpm","emacs-debuginfo-27.2-19.oe2203sp4.x86_64.rpm","emacs-debugsource-27.2-19.oe2203sp4.x86_64.rpm","emacs-devel-27.2-19.oe2203sp4.x86_64.rpm","emacs-lucid-27.2-19.oe2203sp4.x86_64.rpm","emacs-nox-27.2-19.oe2203sp4.x86_64.rpm"],"aarch64":["emacs-27.2-19.oe2203sp4.aarch64.rpm","emacs-common-27.2-19.oe2203sp4.aarch64.rpm","emacs-debuginfo-27.2-19.oe2203sp4.aarch64.rpm","emacs-debugsource-27.2-19.oe2203sp4.aarch64.rpm","emacs-devel-27.2-19.oe2203sp4.aarch64.rpm","emacs-lucid-27.2-19.oe2203sp4.aarch64.rpm","emacs-nox-27.2-19.oe2203sp4.aarch64.rpm"],"noarch":["emacs-filesystem-27.2-19.oe2203sp4.noarch.rpm","emacs-help-27.2-19.oe2203sp4.noarch.rpm","emacs-terminal-27.2-19.oe2203sp4.noarch.rpm"],"src":["emacs-27.2-19.oe2203sp4.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4083.json"}},{"package":{"name":"emacs","ecosystem":"openEuler:24.03-LTS-SP1","purl":"pkg:rpm/openEuler/emacs&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"29.1-9.oe2403sp1"}]}],"ecosystem_specific":{"src":["emacs-29.1-9.oe2403sp1.src.rpm"],"x86_64":["emacs-29.1-9.oe2403sp1.x86_64.rpm","emacs-common-29.1-9.oe2403sp1.x86_64.rpm","emacs-debuginfo-29.1-9.oe2403sp1.x86_64.rpm","emacs-debugsource-29.1-9.oe2403sp1.x86_64.rpm","emacs-devel-29.1-9.oe2403sp1.x86_64.rpm","emacs-lucid-29.1-9.oe2403sp1.x86_64.rpm","emacs-nox-29.1-9.oe2403sp1.x86_64.rpm"],"aarch64":["emacs-29.1-9.oe2403sp1.aarch64.rpm","emacs-common-29.1-9.oe2403sp1.aarch64.rpm","emacs-debuginfo-29.1-9.oe2403sp1.aarch64.rpm","emacs-debugsource-29.1-9.oe2403sp1.aarch64.rpm","emacs-devel-29.1-9.oe2403sp1.aarch64.rpm","emacs-lucid-29.1-9.oe2403sp1.aarch64.rpm","emacs-nox-29.1-9.oe2403sp1.aarch64.rpm"],"noarch":["emacs-filesystem-29.1-9.oe2403sp1.noarch.rpm","emacs-help-29.1-9.oe2403sp1.noarch.rpm","emacs-terminal-29.1-9.oe2403sp1.noarch.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4083.json"}},{"package":{"name":"emacs","ecosystem":"openEuler:24.03-LTS-SP3","purl":"pkg:rpm/openEuler/emacs&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"29.1-9.oe2403sp3"}]}],"ecosystem_specific":{"aarch64":["emacs-29.1-9.oe2403sp3.aarch64.rpm","emacs-common-29.1-9.oe2403sp3.aarch64.rpm","emacs-debuginfo-29.1-9.oe2403sp3.aarch64.rpm","emacs-debugsource-29.1-9.oe2403sp3.aarch64.rpm","emacs-devel-29.1-9.oe2403sp3.aarch64.rpm","emacs-lucid-29.1-9.oe2403sp3.aarch64.rpm","emacs-nox-29.1-9.oe2403sp3.aarch64.rpm"],"noarch":["emacs-filesystem-29.1-9.oe2403sp3.noarch.rpm","emacs-help-29.1-9.oe2403sp3.noarch.rpm","emacs-terminal-29.1-9.oe2403sp3.noarch.rpm"],"src":["emacs-29.1-9.oe2403sp3.src.rpm"],"x86_64":["emacs-29.1-9.oe2403sp3.x86_64.rpm","emacs-common-29.1-9.oe2403sp3.x86_64.rpm","emacs-debuginfo-29.1-9.oe2403sp3.x86_64.rpm","emacs-debugsource-29.1-9.oe2403sp3.x86_64.rpm","emacs-devel-29.1-9.oe2403sp3.x86_64.rpm","emacs-lucid-29.1-9.oe2403sp3.x86_64.rpm","emacs-nox-29.1-9.oe2403sp3.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4083.json"}},{"package":{"name":"emacs","ecosystem":"openEuler:24.03-LTS-SP4","purl":"pkg:rpm/openEuler/emacs&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"29.1-10.oe2403sp4"}]}],"ecosystem_specific":{"aarch64":["emacs-29.1-10.oe2403sp4.aarch64.rpm","emacs-common-29.1-10.oe2403sp4.aarch64.rpm","emacs-debuginfo-29.1-10.oe2403sp4.aarch64.rpm","emacs-debugsource-29.1-10.oe2403sp4.aarch64.rpm","emacs-devel-29.1-10.oe2403sp4.aarch64.rpm","emacs-lucid-29.1-10.oe2403sp4.aarch64.rpm","emacs-nox-29.1-10.oe2403sp4.aarch64.rpm"],"noarch":["emacs-filesystem-29.1-10.oe2403sp4.noarch.rpm","emacs-help-29.1-10.oe2403sp4.noarch.rpm","emacs-terminal-29.1-10.oe2403sp4.noarch.rpm"],"src":["emacs-29.1-10.oe2403sp4.src.rpm"],"x86_64":["emacs-29.1-10.oe2403sp4.x86_64.rpm","emacs-common-29.1-10.oe2403sp4.x86_64.rpm","emacs-debuginfo-29.1-10.oe2403sp4.x86_64.rpm","emacs-debugsource-29.1-10.oe2403sp4.x86_64.rpm","emacs-devel-29.1-10.oe2403sp4.x86_64.rpm","emacs-lucid-29.1-10.oe2403sp4.x86_64.rpm","emacs-nox-29.1-10.oe2403sp4.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4083.json"}},{"package":{"name":"emacs","ecosystem":"openEuler:20.03-LTS-SP4","purl":"pkg:rpm/openEuler/emacs&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"27.1-18.oe2003sp4"}]}],"ecosystem_specific":{"x86_64":["emacs-27.1-18.oe2003sp4.x86_64.rpm","emacs-common-27.1-18.oe2003sp4.x86_64.rpm","emacs-debuginfo-27.1-18.oe2003sp4.x86_64.rpm","emacs-debugsource-27.1-18.oe2003sp4.x86_64.rpm","emacs-devel-27.1-18.oe2003sp4.x86_64.rpm","emacs-lucid-27.1-18.oe2003sp4.x86_64.rpm","emacs-nox-27.1-18.oe2003sp4.x86_64.rpm"],"aarch64":["emacs-27.1-18.oe2003sp4.aarch64.rpm","emacs-common-27.1-18.oe2003sp4.aarch64.rpm","emacs-debuginfo-27.1-18.oe2003sp4.aarch64.rpm","emacs-debugsource-27.1-18.oe2003sp4.aarch64.rpm","emacs-devel-27.1-18.oe2003sp4.aarch64.rpm","emacs-lucid-27.1-18.oe2003sp4.aarch64.rpm","emacs-nox-27.1-18.oe2003sp4.aarch64.rpm"],"noarch":["emacs-filesystem-27.1-18.oe2003sp4.noarch.rpm","emacs-help-27.1-18.oe2003sp4.noarch.rpm","emacs-terminal-27.1-18.oe2003sp4.noarch.rpm"],"src":["emacs-27.1-18.oe2003sp4.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4083.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}