CVE-2026-58306 Memory corruption in Escargot
Heap-based buffer overflow in Escargot JavaScript engine allows attackers to execute arbitrary code 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-2026-58306?
CVE-2026-58306 is a medium-severity memory corruption vulnerability in Samsung Open Source Escargot, published on 9 Jul 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
Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers.
This issue affects Escargot: before ef525f337fafddecde77a3c426212a84bb20cb98.
Weakness: CWE-122
Which versions are affected by CVE-2026-58306?
How do I fix CVE-2026-58306?
No fix has been published for CVE-2026-58306 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-2026-58306 being exploited?
There is no known exploitation of CVE-2026-58306 in the wild and no public exploit code.
Sources
Also known as GHSA-q26j-g249-rwxv.