Heap-based Buffer Overflow Affecting sail package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.05% (15th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Heap-based Buffer Overflow vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CONAN-SAIL-15325689
  • published22 Feb 2026
  • disclosed21 Feb 2026
  • creditNico nicoppida

Introduced: 21 Feb 2026

CVE-2026-27168  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the io->strict_read function. An attacker can cause arbitrary code execution or crash the application by supplying a crafted XWD file with a manipulated bytes_per_line value that triggers a write operation beyond the allocated heap buffer.

References

CVSS Base Scores

version 4.0
version 3.1