Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS

Summary SpiderImagePlugin's seek bypasses the decompression bomb check, allowing a tiny 1KB crafted SPIDER stack file to trigger a multi-gigabyte allocation on im.load. Affected versions All versions up to and including current HEAD v13.0.0.dev0, commit e7a7ea84 Root cause Image.open runs...

GHSA-G842-9RC4-69PW Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS

Summary SpiderImagePlugin's seek bypasses the decompression bomb check, allowing a tiny 1KB crafted SPIDER stack file to trigger a multi-gigabyte allocation on im.load. Affected versions All versions up to and including current HEAD v13.0.0.dev0, commit e7a7ea84 Root cause Image.open runs...

GHSA-P8HX-V2P6-RP84 Pillow: Decompression-bomb protection bypass via multi-frame seek() in MPO and DCX (MpoImageFile.seek / DcxImageFile.seek)

Summary Pillow's decompression-bomb protection Image.decompressionbombcheck, gated by Image.MAXIMAGEPIXELS is enforced only on the first frame, inside Image.open. For multi-frame formats, seek re-parses the target frame's header and resets self.size. GifImagePlugin and TiffImagePlugin re-run the...

CVE-2026-96636

A flaw was found in Pillow. A remote attacker could exploit this vulnerability by enticing an application or user to process a specially crafted multi-frame image file. Because decompression bomb protections are bypassed when navigating subsequent image frames, decoding the file allocates excessi...

CVE-2026-96637

A flaw was found in Pillow. When processing multi-frame SPIDER images, decompression bomb safeguards are not reapplied when navigating to subsequent frames that declare excessively large dimensions. A remote attacker could exploit this vulnerability by providing a specially crafted image file,...

CVE-2026-96636 Pillow: Decompression-bomb protection bypass via multi-frame seek() in MPO and DCX (MpoImageFile.seek / DcxImageFile.seek)

Pillow is a Python imaging library. Prior to 13.0.0, MpoImageFile.seek and DcxImageFile.seek reparse later MPO or DCX frames and replace self.size without rerunning Image.decompressionbombcheck. A crafted multi-frame image can use a tiny first frame to pass Image.open and then declare an over-lim...

CVE-2026-96636 Pillow: Decompression-bomb protection bypass via multi-frame seek() in MPO and DCX (MpoImageFile.seek / DcxImageFile.seek)

Pillow is a Python imaging library. Prior to 13.0.0, MpoImageFile.seek and DcxImageFile.seek reparse later MPO or DCX frames and replace self.size without rerunning Image.decompressionbombcheck. A crafted multi-frame image can use a tiny first frame to pass Image.open and then declare an over-lim...

CVE-2026-96636

The Pillow Python imaging library is vulnerable to a memory-exhaustion denial of service in versions prior to 13.0.0 . The root cause is that MpoImageFile.seek() and DcxImageFile.seek() reparse subsequent MPO or DCX frames and update self._size without re-executing the Image._decompression_bomb_c...

CVE-2026-96637 Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS

Pillow is a Python imaging library. Prior to 13.0.0, SpiderImageFile.seek in src/PIL/SpiderImagePlugin.py reparses a later SPIDER stack frame and replaces self.size without rerunning Image.decompressionbombcheck. A tiny file can use a safe first frame to pass Image.open and then declare very larg...

CVE-2026-96637 Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS

Pillow is a Python imaging library. Prior to 13.0.0, SpiderImageFile.seek in src/PIL/SpiderImagePlugin.py reparses a later SPIDER stack frame and replaces self.size without rerunning Image.decompressionbombcheck. A tiny file can use a safe first frame to pass Image.open and then declare very larg...

CVE-2026-96637

The Pillow Python imaging library is vulnerable to an unbounded memory allocation issue in versions prior to 13.0.0 . The root cause is located in SpiderImageFile.seek() within src/PIL/SpiderImagePlugin.py, which reparses a later SPIDER stack frame and replaces self._size without re-executing the...

CVE-2026-114103

A flaw was found in adm-zip. The asynchronous extraction mechanism fails to enforce maximum output size limits when decompressing files, bypassing decompression bomb protections. A remote attacker can exploit this flaw by submitting a specially crafted ZIP archive with an artificially small...

SUSE CVE-2026-112400

Pillow is a Python imaging library. From 9.2.0 until 13.0.0, Pillow can retain a rejected GIF frame size after a decompression-bomb exception. In GifImageFile.seek, a crafted GIF can leave rejected dimensions stored after Image.DecompressionBombError; if an application catches that exception and...

PNGboomer-CVE-2026-77622

PNGboomer — CVE-2026-77622 Denial-of-service exploit for Sliver C2's HTTPS listener. Brute-forces the per-session PNG encoding nonce and delivers a decompression bomb that exhausts server memory. Published as GHSA-663m-7x7m-g4fw. Summary Sliver's HTTPS C2 channel wraps messages inside PNG images...

CVE-2026-114103

adm-zip 0.6.0 contains a decompression bomb protection bypass that allows attackers to evade the maxOutputLength guard by targeting the asynchronous getDataAsync path in methods/inflater.js. Attackers can craft ZIP entries with falsified small declared sizes and high-ratio DEFLATE payloads to...

EUVD-2026-106906

adm-zip 0.6.0 contains a decompression bomb protection bypass that allows attackers to evade the maxOutputLength guard by targeting the asynchronous getDataAsync path in methods/inflater.js. Attackers can craft ZIP entries with falsified small declared sizes and high-ratio DEFLATE payloads to...

CVE-2026-114103 adm-zip 0.6.0 Decompression Bomb Guard Bypass via getDataAsync()

adm-zip 0.6.0 contains a decompression bomb protection bypass that allows attackers to evade the maxOutputLength guard by targeting the asynchronous getDataAsync path in methods/inflater.js. Attackers can craft ZIP entries with falsified small declared sizes and high-ratio DEFLATE payloads to...

CVE-2026-114103

adm-zip 0.6.0 contains a decompression bomb protection bypass that allows attackers to evade the maxOutputLength guard by targeting the asynchronous getDataAsync path in methods/inflater.js. Attackers can craft ZIP entries with falsified small declared sizes and high-ratio DEFLATE payloads to...

CVE-2026-114103

The adm-zip library version 0.6.0 is vulnerable to a decompression bomb protection bypass within the methods/inflater.js file. Specifically, the getDataAsync() path fails to properly enforce the maxOutputLength guard. Attackers can exploit this by crafting malicious ZIP entries with falsified sma...

PT-2026-120229

adm-zip 0.6.0 contains a decompression bomb protection bypass that allows attackers to evade the maxOutputLength guard by targeting the asynchronous getDataAsync path in methods/inflater.js. Attackers can craft ZIP entries with falsified small declared sizes and high-ratio DEFLATE payloads to...