It was discovered that Pillow could enter an infinite loop while determining the frame count of a MIC image. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.10, Ubuntu 26.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 22.04 LTS. (CVE-2026-112390) It was discovered that Pillow's PdfParser.get_value() could recurse without a limit while reading nested PDF objects. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.10, Ubuntu 26.04 LTS, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 18.04 LTS. (CVE-2026-112391) It was discovered that Pillow's rank-based filters could derefe