CVE-2026-15714 Memory corruption in Red Hat Enterprise Linux 10
A remote attacker can cause denial of service or read unauthorized memory via an oversized multipart boundary in libsoup.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-15714?
CVE-2026-15714 is a medium-severity memory corruption vulnerability in Red Hat Enterprise Linux 10, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An out-of-bounds read vulnerability was found in libsoup's multipart processing subsystem. The flaw exists in the soup_multipart_input_stream_read_headers() function inside soup-multipart-input-stream.c, which does not adequately restrict or validate the size of incoming multipart boundary strings. When processing a crafted HTTP response containing a malformed or oversized boundary parameter, the internal stream reader reads past the allocated buffer bounds. A remote, unauthenticated attacker can exploit this behavior to cause a service denial (DoS) through application failure or potentially read fragments of unauthorized memory metadata.
Weakness: CWE-125
Which versions are affected by CVE-2026-15714?
How do I fix CVE-2026-15714?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-15714 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15714 exists.
Sources
Also known as AZL-92405, DEBIAN-CVE-2026-15714, ECHO-d10b-a930-7882, GHSA-pr44-vh8f-w48v, UBUNTU-CVE-2026-15714.