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TI-2026-83162 Aliases CVE-2026-104066GHSA-j534-3694-g2r9

Heap buffer overflow in Scribus PICT image loader

Priority LOW 38CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Scribus before 1.6.7 and 1.7.x before 1.7.4 contains a heap buffer overflow in the Mac PICT image loader and import plugin. The flaw is an out-of-bounds write (CWE-787) that occurs when the loader unpacks 4-bit indexed pixel data. An attacker who supplies a crafted PICT file with inconsistent width and row data can trigger it when a user places or imports the file, causing crashes or code execution.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

Scribus before 1.6.7 and 1.7.x before 1.7.4 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00212 11th percentileScored 2026-11-07
Fix Fixed Scribus (Scribus): 1.6.7, 1.7.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ScribusScribusbefore 1.6.7; 1.7.0 to before 1.7.41.6.7, 1.7.4Patch availableCNA
  • Scribus VendorScribus Affected before 1.6.7; 1.7.0 to before 1.7.4 Fixed in 1.6.7, 1.7.4 Patch available CNA

Remediation

Scribus 1.6.7 and Scribus 1.7.4 fix the flaw. Upgrade to one of these fixed versions.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

  • Fix · CNA Scribus (Scribus) Fixed in 1.6.7, 1.7.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Scribus 1.6.7, 1.7.4

    7 records Highest priority Priority LOW 7 LOW

    Other records, highest priority first

    • TI-2026-83163 Out-of-bounds memory access in Scribus SVM import pluginPriority LOW 38
    • TI-2026-83161 Out-of-bounds write in Scribus Micrografx Draw importPriority LOW 38
    • TI-2026-83160 Heap overflow in Scribus TIFF loader can crash it or run codePriority LOW 38
    Show all 7 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-104066
  2. 2026-10-30 Affected versions changed · Red Hat
  3. 2026-10-30 CVSS score added · Red Hat
  4. 2026-10-30 CISA SSVC decision points changed
  5. 2026-10-30 Priority changed: MEDIUM → LOW
  6. 2026-10-30 Alias added: GHSA-j534-3694-g2r9
  7. 2026-11-02 Title updated · CNA
  8. 2026-11-02 Fix available: Scribus/[email protected] · CNA
  9. 2026-11-02 1 new reference · CNA

References

Patch 2

Other 2

  • TI-2026-83163 Out-of-bounds memory access in Scribus SVM import plugin CVSS 4.0HIGH 8.5
  • TI-2026-83161 Out-of-bounds write in Scribus Micrografx Draw import CVSS 4.0HIGH 8.5
  • TI-2026-83160 Heap overflow in Scribus TIFF loader can crash it or run code CVSS 4.0HIGH 8.5
  • TI-2026-83158 Scribus PICT Loader Heap Buffer Overflow via bytesPerLine CVSS 4.0HIGH 8.5
  • TI-2026-83157 Heap out-of-bounds write in Scribus PSD image loader CVSS 4.0HIGH 8.5
  • TI-2026-83159 Out-of-bounds read in Scribus PICT image loader CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences