CVE-2026-96638mediumCWE-400CWE-770

CVE-2026-96638: falha de média gravidade em python-pillow Pillow

Pillow: BMP RLE decoder memory-amplification DoS via unbounded delta escape / absolute mode

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar Pillow+ Monitorar pillow

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 6.5epss 0.3%
Pillow is a Python imaging library. From 9.1.0 until 13.0.0, BmpRleDecoder.decode() in src/PIL/BmpImagePlugin.py permits crafted RLE BMP delta escapes and absolute-mode runs to append beyond the remaining dest_length without a per-branch cap. A delta can add roughly 255 image rows in one iteration, so a kilobyte-sized file with a large but permitted width can expand the data bytearray to hundreds of megabytes or more, causing memory-exhaustion denial of service. This issue is fixed in version 13.0.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Produtos afetados
python-pillow · Pillow
CVEs relacionadas — python-pillow Pillow

No mesmo produto, das mais perigosas para as menos.

CVE-2026-112900CRITICALPillow: Argument Injection in Ghostscript call, potentially leading into RCEEPSS 1.3%CVE-2026-112393CRITICALPillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIOEPSS 1.0%CVE-2026-112403CRITICALPillow: Heap buffer overflow in ImagingJpegDecodeEPSS 0.9%CVE-2026-112398CRITICALPillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code executionEPSS 0.7%CVE-2026-112396MEDIUMPillow: Heap use-after-free when encoding TIFF to an in-memory bufferEPSS 0.7%CVE-2026-40192HIGHPillow is vulnerable to a FITS GZIP decompression bombEPSS 0.7%