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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`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade libpng | Jun 5, 2026 | Jun 4, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbird | Jun 9, 2026 | Jun 9, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox | Jun 9, 2026 | Jun 4, 2026 |
| Debian | — | Upgrade libpng1.6 | May 17, 2026 | May 17, 2026 |
| Redhat_linux | — | No solution exists | Sep 2, 2026 | Jun 4, 2026 |
| Ubuntu | — | Upgrade libpng16-16 (Ubuntu Pro)Upgrade libpng-dev (Ubuntu Pro)Upgrade libpng16-16Upgrade libpng-devUpgrade libpng-toolsUpgrade libpng-tools (Ubuntu Pro) | Aug 18, 2026 | Aug 17, 2026 |
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