{"schema":"threatline.record/2","record":{"id":"CVE-2026-92449","aliases":["GHSA-m85v-2ccm-w6gf"],"summary":"Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena","details":"`_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table.\n\n\n\nThe overflowed buffer is allocated by GUIX itself, through `_gx_system_memory_allocator`, rather than supplied by the caller, so the loader corrupts its own arena. The public API `gx_binres_theme_load()` takes no size parameter, so no amount of caller diligence prevents this.\n\n\n\nReproduces in the shipped default configuration; `GX_BINARY_RESOURCE_SUPPORT` is enabled by default.","categories":["Unclassified"],"product":"Eclipse ThreadX - GUIX","vendor":"Eclipse Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-92449","source_modified_at":"2026-10-20T15:27:55.848Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Eclipse ThreadX - GUIX","vendor":"Eclipse Foundation","versions":[{"status":"affected","version":"6.3.0","lessThanOrEqual":"6.5.1.202602a","versionType":"semver"},{"status":"unaffected","version":"6.5.2.202603"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00159,"percentile":0.04637,"score_date":"2026-10-23"},"published_at":"2026-10-20T14:51:24.582Z","modified_at":"2026-10-20T15:27:55.848Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-92449","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-20T15:27:55.848Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-92449","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/eclipse-threadx/guix/security/advisories/GHSA-m85v-2ccm-w6gf"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-20T15:27:16.562385Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-20T15:27:55.848Z","content_hash":"3ea030da36e558b9132a0ab222654299ad7d1729150a71432d21522ac93dab8d"}}