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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-g842-9rc4-69pw | Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS |
Thu, 22 Oct 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Metrics |
threat_severity
|
cvssV3_1
|
Thu, 22 Oct 2026 04:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Python-pillow
Python-pillow pillow |
|
| Vendors & Products |
Python-pillow
Python-pillow pillow |
Wed, 21 Oct 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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._decompression_bomb_check(). A tiny file can use a safe first frame to pass Image.open() and then declare very large dimensions in a later mode F frame. Loading that frame allocates approximately four bytes per attacker-declared pixel and can consume multiple gigabytes of memory. This issue is fixed in version 13.0.0. | |
| Title | Pillow: Decompression bomb check bypass in SpiderImagePlugin.seek() leads to unbounded allocation DoS | |
| Weaknesses | CWE-400 CWE-409 |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-21T21:01:20.249Z
Reserved: 2026-09-23T14:35:50.130Z
Link: CVE-2026-96637
No data.
Status : Awaiting Analysis
Published: 2026-10-21T21:20:31.927
Modified: 2026-10-22T16:46:48.920
Link: CVE-2026-96637
OpenCVE Enrichment
Updated: 2026-10-22T06:00:14Z
Github GHSA