Samsung rlottie: Seven Medium-Severity Memory Corruption Vulnerabilities Disclosed
Key findings • Seven medium-severity vulnerabilities in Samsung's rlottie library disclosed on June 4, 2026. • Flaws include out-of-bounds writes, integer overflows, and uncontrolled recursio…
Key findings
- Seven medium-severity vulnerabilities in Samsung's rlottie library disclosed on June 4, 2026.
- Flaws include out-of-bounds writes, integer overflows, and uncontrolled recursion.
- All vulnerabilities affect rlottie versions prior to specific commit hashes.
- The disclosures point to potential memory corruption and denial-of-service risks.
- Updating to patched rlottie versions is the recommended mitigation.
On June 4, 2026, a cluster of seven medium-severity vulnerabilities affecting Samsung's open-source rlottie library was disclosed. All seven issues, carrying a CVSSv3 score of 6.1, were published simultaneously, indicating a coordinated disclosure event focused on memory corruption flaws within the animation rendering library.
The vulnerabilities span several types of memory safety issues, including out-of-bounds writes, integer overflows, access of uninitialized pointers, uncontrolled recursion, and excessive memory allocation. These flaws could potentially be exploited by attackers to cause denial-of-service conditions or, in some cases, lead to more severe memory corruption that might be leveraged for code execution.
Specifically, CVE-2026-8916 and CVE-2026-47318 detail stack-based buffer overflow vulnerabilities, allowing for the overflow of buffers. CVE-2026-49510 describes an integer overflow or wraparound vulnerability, which can lead to unexpected behavior and potential security bypasses. CVE-2026-47320 combines access of uninitialized pointers with uncontrolled recursion, enabling pointer manipulation and the processing of oversized serialized data payloads.
Further contributing to the batch, CVE-2026-47319 highlights a vulnerability related to memory allocation with an excessive size value, potentially leading to denial-of-service through resource exhaustion. CVE-2026-47306 also involves uncontrolled recursion, specifically allowing for oversized serialized data payloads. Lastly, CVE-2026-10305 is an out-of-bounds read vulnerability, enabling the over-reading of buffers.
All disclosed vulnerabilities affect versions of rlottie prior to specific commit hashes, indicating that updating to a patched version is the primary mitigation strategy. The commit hashes provided in the advisories serve as precise markers for the fixes, allowing developers to identify the exact code changes that address these issues. Users of the rlottie library, particularly those integrating it into Samsung mobile devices or other products, are advised to review these commit details and apply the necessary updates.
While no specific threat actor or active exploitation campaigns were mentioned in the disclosure, the nature of these memory corruption vulnerabilities means they could be attractive targets for attackers seeking to compromise systems. The simultaneous disclosure of these related flaws suggests a thorough internal review or external audit of the rlottie library, leading to a comprehensive patch release.
This batch of vulnerabilities underscores the importance of secure coding practices, especially in open-source libraries that are widely integrated. Developers relying on rlottie should ensure they are using versions that incorporate the fixes for CVE-2026-8916, CVE-2026-49510, CVE-2026-47320, CVE-2026-47319, CVE-2026-47318, CVE-2026-47306, and CVE-2026-10305 to protect against potential memory corruption exploits.