Pillow is a Python imaging library. From 4.1.0 until 13.0.0, Pillow's MSP RLE decoder can expand a small file into an unbounded in-memory buffer. The decoder writes run-length output to BytesIO without limiting expansion to the declared image size. An attacker can supply a crafted MSP image to an application that loads its pixels. This can exhaust memory and deny service even when the declared pixel count passes the decompression-bomb check. This issue is fixed in version 13.0.0.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 19 Oct 2026 22:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Python-pillow
Python-pillow pillow |
|
| Vendors & Products |
Python-pillow
Python-pillow pillow |
Mon, 19 Oct 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Pillow is a Python imaging library. From 4.1.0 until 13.0.0, Pillow's MSP RLE decoder can expand a small file into an unbounded in-memory buffer. The decoder writes run-length output to BytesIO without limiting expansion to the declared image size. An attacker can supply a crafted MSP image to an application that loads its pixels. This can exhaust memory and deny service even when the declared pixel count passes the decompression-bomb check. This issue is fixed in version 13.0.0. | |
| Title | Pillow: MSP RLE decoder expands a tiny file into unbounded memory | |
| Weaknesses | CWE-409 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-19T21:35:25.797Z
Reserved: 2026-10-19T20:16:09.856Z
Link: CVE-2026-112892
No data.
Status : Received
Published: 2026-10-19T22:17:09.210
Modified: 2026-10-19T22:17:09.210
Link: CVE-2026-112892
No data.
OpenCVE Enrichment
Updated: 2026-10-19T22:30:04Z
Weaknesses