{"id":"CVE-2026-58496","revision":"9eca438702734cb1b8b71004246412d9","records":[{"revision":"9eca438702734cb1b8b71004246412d9","observedAt":"2026-10-27T23:45:55.339+00:00","statement":{"source":"cve-program","id":"CVE-2026-58496","aliases":[],"title":"ThorVG: Out-of-bounds Read in SFNT/TTF Font Loader via Memory API","description":"Thor Vector Graphics (ThorVG) is a production-ready vector graphics engine. Prior to 1.0.7, the `SFNT/TTF` font loader's `SfntLoader::gen` function in `tvgSfntLoader.cpp` reads `data[0] through data[3]` to identify the font type without first checking that the input buffer contains at least four bytes. Loading an undersized font directly from memory through public APIs such as `tvg::Text::load` causes an out-of-bounds read. Loading through a file path using `mmap` can mask the read because of page alignment; the memory-loading API directly exposes it. Depending on memory layout, a malformed short font may crash the consuming application or disclose adjacent heap memory. This issue is fixed in version 1.0.7.","state":0,"publishedAt":"2026-10-27T22:18:34.301+00:00","modifiedAt":"2026-10-27T22:18:34.301+00:00","affected":[{"ecosystem":"Vendor product","name":"thorvg","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"thorvg\",\n                    \"product\": \"thorvg\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.0.7\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/thorvg/thorvg/security/advisories/GHSA-crfw-c34f-vqrj","https://github.com/thorvg/thorvg/commit/1dc232a33535946b5eed5fd65e993b13226da0ca","https://github.com/thorvg/thorvg/releases/tag/v1.0.7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-58496","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-58496","identifiers":["CVE-2026-58496"]},"retained":false,"historicalAffected":[]}],"coverage":[]}