CVE-2026-18772

Published Aug 4, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion.

Analysis

AI-generated

Technical impact

An improperly controlled sequential memory allocation flaw in Samsung’s open‑source rlottie library allows exponential data expansion when processing oversized serialized payloads. This vulnerability, classified as CWE‑1325, can consume excessive memory and cause the program to crash, leading to a denial of service for applications that rely on rlottie to render animations. The impact is limited to availability and does not expose sensitive data directly.

Affected Systems

The affected product is Samsung Open Source rlottie. No specific version information is provided in the CNA data, so all releases prior to the pending fix should be considered vulnerable if they contain the same unvalidated input handling.

Risk and Exploitability

The CVSS score of 6.5 indicates a moderate severity. The EPSS score of < 1% indicates a very low exploitation probability, and the vulnerability is not listed in the CISA KEV catalog, implying that there is no confirmed exploitation at the time of this analysis. The likely attack vector would involve providing a crafted serialized payload to the rlottie component; such an exploit could be local or remote depending on how the library is exposed by the application. Overall, the risk is moderate but could be heightened in systems that accept unchecked data from untrusted sources.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Audit all instances where rlottie is used and confirm the installed library version.
  • If an affected version is in use, upgrade to the latest release from the Samsung GitHub repository that contains the input‑validation fix.
  • Add application‑level validation to enforce a maximum size on serialized data before it is forwarded to rlottie, thereby mitigating potential denial‑of‑service effects.

Generated by OpenCVE AI on August 11, 2026 at 06:22 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Samsung
Samsung rlottie
CPEs cpe:2.3:a:samsung:rlottie:-:*:*:*:*:*:*:*
Vendors & Products Samsung
Samsung rlottie
Type Values Removed Values Added
Title Oversized Serialized Data Payloads Vulnerability in Samsung rlottie Library
Type Values Removed Values Added
Description Improper input validation vulnerability in Samsung Open Source rlottie allows Oversized Serialized Data Payloads. Improperly controlled sequential memory allocation vulnerability in Samsung Open Source rlottie allows Exponential Data Expansion.
Weaknesses CWE-20 CWE-1325
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Title Oversized Serialized Data Payloads Vulnerability in Samsung rlottie Library
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Samsung Open Source
Samsung Open Source rlottie
Vendors & Products Samsung Open Source
Samsung Open Source rlottie
Type Values Removed Values Added
Description Improper input validation vulnerability in Samsung Open Source rlottie allows Oversized Serialized Data Payloads.
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Weaknesses
  • CWE-1325

    Improperly Controlled Sequential Memory Allocation

Sources

Status
PUBLISHED
Assigner
samsung.tv_appliance
Published
Updated
Aug 12, 2026, 12:22 AM
Reserved
Aug 4, 2026, 7:17 AM
Status
Analyzed
Published
Aug 4, 2026, 10:19 AM
Modified
Oct 23, 2026, 11:10 PM