CVE-2026-112401Medium· 6.9▾ SunlitPillow is a Python imaging library. From 5.4.0 until 13.0.0, Pillow performs quadratic copying while parsing GIF comments. GifImageFile._seek() repeatedly appends immutable bytes for comment sub-blocks and multiple comment extensions, an…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 38 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Pillow is a Python imaging library. From 5.4.0 until 13.0.0, Pillow performs quadratic copying while parsing GIF comments. GifImageFile._seek() repeatedly appends immutable bytes for comment sub-blocks and multiple comment extensions, and frame zero is parsed during Image.open(). An attacker can submit a small-dimension GIF containing many comment extensions to any application that opens the file. This can consume excessive CPU and deny service before the application can inspect the image. This issue is fixed in version 13.0.0.
Pillow >= 5.4.0, < 13.0.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-112891Medium· 6.9Pillow: Quadratic GIF comment copying during save
CVE-2026-112894High· 8.7Pillow: Quadratic-time DoS in PDF save_all (PdfParser.next_object_id)
CVE-2026-112900Critical· 9.2Pillow: Argument Injection in Ghostscript call, potentially leading into RCE
CVE-2026-112893High· 8.2Pillow: Invalid free in FreeType glyph rendering when a stroker is active
CVE-2026-112895High· 8.7Pillow: Unbounded recursion parsing a PDF page tree or trailer chain (incomplete fix for CVE-2026-42310)
CVE-2026-112897High· 8.7Pillow: TiffDecode returns uninitialized memory as pixels for short JPEG strips