Vulnerabilities
Samsung rlottie Stack-Based Buffer Overflow Leads to Remote Code Execution
A stack-based buffer overflow vulnerability in the Samsung rlottie library, tracked as CVE-2026-91826 with a CVSS score of 7.8, allows remote code execution via user interaction. SecOps and defenders must audit applications utilizing rlottie and apply available vendor updates.
What Happened
A critical vulnerability has been disclosed in the Samsung rlottie animation library. Identified as CVE-2026-91826 and assigned a CVSS score of 7.8, the flaw is a stack-based buffer overflow stemming from insufficient length validation on user-supplied data before it is copied into a fixed-size buffer.
Technical Impact
Successful exploitation requires user interaction—specifically, processing a malformed file or input through the vulnerable rlottie library. Because the flaw lacks proper input bounds checking, an attacker can achieve remote code execution running in the context of the application process utilizing the library, potentially compromising confidentiality, integrity, and availability.
What Defenders Should Do
Sysadmins and security teams managing software dependencies that bundle or link against Samsung rlottie should take immediate action:
- Audit internal software inventories to identify applications utilizing the rlottie library.
- Apply vendor patches and updated library versions as soon as they become available.
- Implement strict input validation boundaries at the application layer where untrusted animation data is ingested.
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