{"schemaVersion":3,"id":"CVE-2026-40930","aliases":["ALPINE-CVE-2026-40930","MGASA-2026-0205","RHSA-2026:20356","UBUNTU-CVE-2026-40930","DEBIAN-CVE-2026-40930"],"status":"published","duplicateOf":null,"title":null,"description":"LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. 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