---
id: CVE-2026-18772
title: >-
  Improperly controlled sequential memory allocation vulnerability in Samsung
  Open Source rlottie allows Exponential Data Expansion.
summary: >-
  Improperly controlled sequential memory allocation vulnerability in Samsung
  Open Source rlottie allows Exponential Data Expansion.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-1325
vendor: samsung
product: rlottie
affected:
  - rlottie
published: '2026-08-04'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T15:59:32.730'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18772'
references:
  - url: 'https://github.com/Samsung/rlottie/pull/596'
    label: PSIRT@samsung.com
tags:
  - nvd
epss: 0.00355
epssPercentile: 0.2643
ingestedAt: '2026-09-23T16:27:22.624Z'
---

## Overview

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

## Affected

- `rlottie`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.