CVE-2026-2436
highA flaw was found in libsoup's SoupServer.
Vendor / product: Gnome — libsoup
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.
CVSS
8.2
8.2 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-03-26 20:16
Modified: 2026-11-05 20:17
NVD status: Analyzed
Last synced 2 hours ago
Verified against the source API 2026-11-05 20:22 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
gnome / libsoup all versions
redhat / enterprise_linux 6.0, 7.0, 8.0, 9.0, 10.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://gitlab.gnome.org/GNOME/libsoup/-/issues/501
References
- https://access.redhat.com/security/cve/CVE-2026-2436 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2442909 secalert@redhat.com
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/501 secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-05 20:22 UTC · record ↗