CVE-2026-58307 Memory corruption in Escargot
An out-of-bounds read in the Escargot JavaScript engine allows attackers to cause denial of service or read sensitive memory.
- 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-2026-58307?
CVE-2026-58307 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
Out-of-bounds read, Reachable assertion vulnerability in Samsung Open Source Escargot allows Overread Buffers, Input Data Manipulation.
This issue affects Escargot: before 2dee22f5c7b8bf31cb7252d7731fae8c07f2842c.
Which versions are affected by CVE-2026-58307?
How do I fix CVE-2026-58307?
No fix has been published for CVE-2026-58307 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-2026-58307 being exploited?
There is no known exploitation of CVE-2026-58307 in the wild and no public exploit code.
Sources
Also known as GHSA-7947-c2xp-c8w5.