{"apiVersion":"1.0","identifier":"CVE-2026-77219","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.","publishedAt":"2026-08-21T21:17:06","lastModifiedAt":"2026-08-21T22:16:45","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77219","cvssScore":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H","epssProbability":0.00128,"riskScore":0.72,"affectedProduct":"GNU Emacs","affectedVersions":"<31.0.91","vulnerabilityType":"Critical software","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-77219","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-77219","en":"https://www.redsauce.net/en/cves/CVE-2026-77219","fr":"https://www.redsauce.net/fr/cves/CVE-2026-77219","pt":"https://www.redsauce.net/pt/cves/CVE-2026-77219","de":"https://www.redsauce.net/de/cves/CVE-2026-77219","sk":"https://www.redsauce.net/sk/cves/CVE-2026-77219","el":"https://www.redsauce.net/el/cves/CVE-2026-77219"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-77219"}}