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Medium 6.5Published Mar 26, 2026

CVE-2026-2436Libsoup: libsoup: denial of service via use-after-free in soupserver during tls handshake

Updated under an hour ago ()

Does this affect you?

It affects Red Hat Enterprise Linux 10 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness (CWE)
CWE-825
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
redhat
NVD analysis
Analyzed
Record last updated
Apr 21, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
10
CNA record
gnome libsoup
gnome:libsoup
all versions
NVD
redhat enterprise_linux
redhat:enterprise_linux
6.0; 7.0; 8.0; 9.0; 10.0
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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