Bug 2564134 (CVE-2026-104066)

Summary: CVE-2026-104066 scribus: scribus: Arbitrary code execution via crafted PICT file
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Scribus. By tricking a user into importing or placing a specially crafted Macintosh Picture (PICT) image file with inconsistent dimension data, an attacker can trigger a heap-based buffer overflow during pixel unpacking. This flaw can allow an attacker to achieve arbitrary code execution or cause the application to crash, resulting in a Denial of Service (DoS).
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2565827, 2565829, 2565831, 2565834    
Bug Blocks:    

Description OSIDB Bzimport 2026-10-30 15:37:41 UTC
Scribus before 1.6.7 contains a heap buffer overflow vulnerability in the Mac PICT image loader and import plugin when unpacking 4-bit indexed pixel data. Attackers can supply a crafted PICT file with inconsistent width and row data that, when placed or imported, writes out of bounds, causing crashes or code execution.