CVE-2026-18772

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Improper Input Validation in Samsung rlottie

Publication date: 2026-08-04

Last updated on: 2026-08-18

Assigner: Samsung TV & Appliance

Description

Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-04

Last Modified

2026-08-18

Generated

2026-08-24

AI Q&A

2026-08-04

EPSS Evaluated

2026-08-23

NVD

CVE-2026-18772

EUVD

EUVD-2026-52647

Affected Vendors & Products

Vendor	Product	Version / Range
samsung	rlottie	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1325	The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects.
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper input validation in Samsung's rlottie library, allowing oversized serialized data payloads. It enables attackers to cause excessive resource consumption through deeply nested or oversized inputs, potentially leading to denial of service.

Detection Guidance

Detecting this vulnerability requires checking if your system uses a vulnerable version of Samsung's rlottie library. Inspect installed packages or binaries for rlottie and verify if they are below the patched version. No specific network commands are provided in the context.

Impact Analysis

The vulnerability could allow attackers to crash applications or systems by sending maliciously crafted data, disrupting normal operations. It may also lead to resource exhaustion, affecting performance and availability of services using rlottie.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR or HIPAA as it involves improper input validation leading to resource exhaustion rather than data exposure or privacy violations.

Mitigation Strategies

Update the rlottie library to the patched version that includes safety limits for nested inputs, render-node counts, and repeater copies. If updating is not possible, restrict input sources to trusted files and validate all serialized data payloads before processing.

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