CVE-2026-91826 Memory corruption in rLottie

Medium 4.4 Published Updated

Attackers can trigger memory corruption via crafted vector animations in the rLottie library, potentially leading to code execution or crashes.

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-2026-91826?

CVE-2026-91826 is a medium-severity memory corruption vulnerability in Samsung Opensource rLottie, published on 15 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

Stack-based buffer overflow vulnerability in Samsung Opensource rLottie allows attackers to overflow buffers, leading to memory corruption when rendering crafted vector animations.

This issue affects rLottie: 480a2ad0c5d2e45458c545b8213279e9e8b71e39.

Weakness: CWE-121

Which versions are affected by CVE-2026-91826?

How do I fix CVE-2026-91826?

No fix has been published for CVE-2026-91826 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-2026-91826 being exploited?

There is no known exploitation of CVE-2026-91826 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-91826, GHSA-27vc-rxrh-6fxx, UBUNTU-CVE-2026-91826.

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