Vulnerability · Published Oct 30, 2026 · Assigned by VulnCheck
CVE-2026-104066Scribus before 1.6.7 and 1.7.x before 1.7.4 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking
High 7.8
In plain English
A high-severity out-of-bounds write in Scribus from Scribus. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 88.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | scribus | no fix listed | DEBIAN-CVE-2026-104066 |
| Debian:13 | scribus | no fix listed | DEBIAN-CVE-2026-104066 |
| Debian:14 | scribus | no fix listed | DEBIAN-CVE-2026-104066 |
| Ubuntu:22.04:LTS | scribus | no fix listed | UBUNTU-CVE-2026-104066 |
| Ubuntu:24.04:LTS | scribus | no fix listed | UBUNTU-CVE-2026-104066 |
| Ubuntu:26.04:LTS | scribus | no fix listed | UBUNTU-CVE-2026-104066 |
| Ubuntu:26.10 | scribus | no fix listed | UBUNTU-CVE-2026-104066 |
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- Patch Commit (1.6.x) patch
- Patch Commit (1.7.x) patch
- https://github.com/scribusproject/scribus product
- https://wiki.scribus.net/canvas/1.6.7_Release release-notes
- VulnCheck Advisory: Scribus before 1.6.7 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking third-party-advisory