{"apiVersion":"1.0","identifier":"CVE-2026-65979","description":"OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. From version 3.4.0 through 3.4.12, the HTJ2K decoder parses a header-length field (PLEN) from a chunk-s compressed data but never checks that this value fits within the available buffer before using it. When decoding, it advances the codestream pointer by the attacker-supplied header size and passes the resulting offset and remaining length to the OpenJPH memory-input path, so a crafted value pushes the pointer past the end of the buffer and causes an out-of-bounds read. Because this field comes straight from attacker-controlled EXR chunk data, the flaw is reachable during normal decoding of an untrusted file. This issue is fixed in version 3.4.13.","publishedAt":"2026-08-25T19:16:52","lastModifiedAt":"2026-08-25T20:17:01","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65979","cvssScore":6.7,"cvssVector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00136,"riskScore":0.68,"affectedProduct":"OpenEXR","affectedVersions":">=3.4.0,<3.4.13","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-65979","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-65979","en":"https://www.redsauce.net/en/cves/CVE-2026-65979","fr":"https://www.redsauce.net/fr/cves/CVE-2026-65979","pt":"https://www.redsauce.net/pt/cves/CVE-2026-65979","de":"https://www.redsauce.net/de/cves/CVE-2026-65979","sk":"https://www.redsauce.net/sk/cves/CVE-2026-65979","el":"https://www.redsauce.net/el/cves/CVE-2026-65979"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-65979"}}