Vulnerability · Published Oct 21, 2026 · Assigned by VulnCheck

CVE-2026-114112Sharp before 0.35.4 RCE via bundled libheif AVIF decoding

High 8.9

In plain English

A high-severity heap buffer overflow in sharp from lovell. 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 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.9High

Exploit odds (30 days)0.2%top 84.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	sharp	0.35.4	GHSA-rgj7-g3m4-5g8c

Affected products (as reported)

Vendor	Product	Versions
lovell	sharp	0 – before 0.35.4

Weakness: CWE-122 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References

GitHub Security Advisory (GHSA-rgj7-g3m4-5g8c) vendor-advisory
VulnCheck Advisory: Sharp before 0.35.4 RCE via bundled libheif AVIF decoding third-party-advisory