CVE-2026-49509 Memory corruption in rLottie
An out-of-bounds read in the rLottie library allows attackers to read memory or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-49509?
CVE-2026-49509 is a medium-severity memory corruption vulnerability in Samsung Opensource rLottie, published on 3 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Out-of-bounds read vulnerability in Samsung Opensource rLottie allows Overread Buffers.
This issue affects rLottie: 25648aef19187b3f87f4d9420b8d761453ad4630.
Weakness: CWE-125
Which versions are affected by CVE-2026-49509?
How do I fix CVE-2026-49509?
No fix has been published for CVE-2026-49509 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-49509 being exploited?
There is no known exploitation of CVE-2026-49509 in the wild and no public exploit code.
Sources
Also known as GHSA-4h83-hmwj-4663.