Description
Pillow is a Python imaging library. From 8.2.0 until 13.0.0, Pillow's tiled-TIFF decoder can read past the tile buffer while copying four-byte pixels. In _decodeTile, libtiff can return a tile allocation smaller than the required row stride multiplied by the tile length, and Pillow's stride-and-copy loop walks beyond that allocation. An attacker can supply a crafted tiled TIFF to an application that loads it. This can expose adjacent heap data in pixels or crash the process. This issue is fixed in version 13.0.0.
Published: 2026-10-19
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Tue, 20 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 19 Oct 2026 23:00:00 +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 21:15:00 +0000

Type Values Removed Values Added
Description Pillow is a Python imaging library. From 8.2.0 until 13.0.0, Pillow's tiled-TIFF decoder can read past the tile buffer while copying four-byte pixels. In _decodeTile, libtiff can return a tile allocation smaller than the required row stride multiplied by the tile length, and Pillow's stride-and-copy loop walks beyond that allocation. An attacker can supply a crafted tiled TIFF to an application that loads it. This can expose adjacent heap data in pixels or crash the process. This issue is fixed in version 13.0.0.
Title Pillow tiled-TIFF decoder reads past tile buffer in copy4 (Unpack.c:1290)
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}


Subscriptions

Python-pillow Pillow
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-19T20:59:15.098Z

Reserved: 2026-10-19T16:58:51.959Z

Link: CVE-2026-112395

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-19T21:17:07.880

Modified: 2026-10-19T21:17:07.880

Link: CVE-2026-112395

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-19T20:59:15Z

Links: CVE-2026-112395 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T00:30:07Z

Weaknesses