CVE-2026-112404

Pillow: OOB read in TiffDecode.c tile and RGBA paths leaks heap memory into pixels

HIGH
8.2
CVSS Score
Published: October 19, 2026 at 09:27 PM UTC
Updated: October 28, 2026 at 04:17 PM UTC
2 products affected across 2 vendorsPillowPillow

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Severity
HIGH8.2
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow's TIFF tile and RGBA decode paths can read beyond row data produced by libtiff. In _decodeTile and the RGBA unpacker path, when Pillow and libtiff interpret duplicated PhotometricInterpretation or BitsPerSample tags differently, Pillow does not verify that the required input row fits inside the row libtiff produced, while the strip path has this validation. Loading pixels from such a crafted TIFF can expose adjacent heap data in output pixels or crash the process. This issue is fixed in version 13.0.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

8.1.0 ≤ v < 13.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMExploitMitigationPatchVendor Advisory
Source: cverecord
https://github.com/python-pillow/Pillow/security/advisories/GHSA-c6hw-5grf-ff96
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/python-pillow/Pillow/releases/tag/13.0.0

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-126

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