What’s Vulnerable › Vulnerabilities

CVE-2022-27938

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-26 · updated 2026-06-17
• Weakness: CWE-617

Description

stb_image.h (aka the stb image loader) 2.19, as used in libsixel and other products, has a reachable assertion in stbi__create_png_image_raw.

Affected products

• Libsixel: before 1.10.4 — fixed in 1.10.4
• saitoha libsixel: before 1.8.7 — fixed in 1.8.7

How to fix

Upgrade to a fixed version: Libsixel 1.10.4; saitoha libsixel 1.8.7. Check the vendor advisory for mitigations.

References

• https://github.com/saitoha/libsixel/issues/163
• https://github.com/saitoha/libsixel/issues/163

Get alerted when CVE-2022-27938 or the next vulnerability affects your stack