Critical severity · published Mar 19, 2026
CVE-2026-2369
Libsoup: libsoup: buffer overread due to integer underflow when handling zero-length resources
9.1
CVSS
0.4%
EPSS
No
On KEV
Description
A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
LI
Libsoup · Gnome
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2369
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2369
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-2369
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2439091
Issue Tracking
https://gitlab.gnome.org/GNOME/libsoup/-/issues/498
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