CVE-2026-24797 An out of bounds write due to a missing bounds check in neka-nat/cupoch
An out-of-bounds write in the libjpeg-turbo module of Cupoch allows attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-24797?
CVE-2026-24797 is a medium-severity memory corruption vulnerability in neka-nat cupoch, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Out-of-bounds Write vulnerability in neka-nat cupoch (third_party/libjpeg-turbo/libjpeg-turbo modules). This vulnerability is associated with program files tjbench.C.
This issue affects cupoch.
Weakness: CWE-787
Which versions are affected by CVE-2026-24797?
How do I fix CVE-2026-24797?
No fix has been published for CVE-2026-24797 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-2026-24797 being exploited?
There is no known exploitation of CVE-2026-24797 in the wild and no public exploit code.
Sources
Also known as GHSA-hrhr-p4w4-553m.