CVE-2026-114112: Heap Overflow

Description

Sharp before 0.35.4 bundles a vulnerable libheif dependency that allows attackers to achieve possible remote code execution on glibc-based Linux by supplying crafted images. Attackers can submit malicious AVIF/HEIF input to applications processing untrusted images with sharp, triggering libheif decoding flaws to execute code.

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Weakness Type (CWE)

CWE-122 CWE-122

References

Other References

https://github.com/lovell/sharp/security/advisories/GHSA-rgj7-g3m4-5g8c https://www.vulncheck.com/advisories/sharp-before-0.35.4-rce-via-bundled-libheif-avif-decoding

Frequently Asked Questions

What is CVE-2026-114112? +

Sharp before 0.35.4 bundles a vulnerable libheif dependency that allows attackers to achieve possible remote code execution on glibc-based Linux by supplying crafted images. Attackers can submit malicious AVIF/HEIF input to applications processing untrusted images with sharp, triggering libheif decoding flaws to execute code.

How do I check if I'm vulnerable to CVE-2026-114112? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-114112