CVE-2026-2436CWE-825

Libsoup: libsoup: denial of service via use-after-free in soupserver during tls handshake

Medium · published March 26, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
38.6
In the wild
Unconfirmed
What it is

A flaw was found in libsoup's SoupServer. A remote attacker could exploit a use-after-free vulnerability where the `soup_server_disconnect()` function frees connection objects prematurely, even if a TLS handshake is still pending. If the handshake completes after the connection object has been freed, a dangling pointer is accessed, leading to a server crash and a Denial of Service.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00455 · 38.6th percentile
Weakness
CWE-825 · Expired Pointer Dereference
Published
2026-03-26T19:31Z
EPSS history
Timeline
  • 26 MAR 19:31Z
    Libsoup: libsoup: denial of service via use-after-free in soupserver during tls handshake
    cvelistv5