Skip to main content

ExifReader CVE-2026-8814

| EUVD-2026-30842 MEDIUM
Improper Handling of Highly Compressed Data (Data Amplification) (CWE-409)
2026-05-19 snyk
Information Disclosure
5.5
CVSS 4.0
Share

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
CVSS changed
May 19, 2026 - 07:22 NVD
5.3 (MEDIUM) 5.5 (MEDIUM)
Patch available
May 19, 2026 - 07:16 EUVD
Source Code Evidence Fetched
May 19, 2026 - 06:47 vuln.today
Analysis Generated
May 19, 2026 - 06:47 vuln.today

DescriptionNVD

Versions of the package exifreader before 4.39.0 are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) due to decompressing PNG zTXt metadata without enforcing a built-in maximum decompressed output size. When asynchronous parsing is enabled, a crafted PNG file containing a highly compressed zTXt chunk can cause ExifReader to materialize a disproportionately large Comment value in memory.

AnalysisAI

Decompression bomb (data amplification) in ExifReader npm package before 4.39.0 allows remote unauthenticated attackers to exhaust server memory by supplying a crafted PNG file with a highly compressed zTXt metadata chunk. The vulnerable path activates only when the caller enables asynchronous parsing (async: true), at which point ExifReader decompresses the chunk via the Compression Streams API with no upper bound on output size. …

Sign in for full analysis, threat intelligence, and remediation guidance.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Share

CVE-2026-8814 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy