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Vulnerability record · CVE-2026-2369 · published 19 March 2026

CVE-2026-2369: Gnome libsoup vulnerability

Gnome · Libsoup

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.

9.1 CVSS 3.1 Critical EPSS 0.42% · top 66.2% CWE-191 · CWE-191
9.1CVSS 3.1 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2026-2369 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2439091 Issue TrackingThird Party Advisory
https://gitlab.gnome.org/GNOME/libsoup/-/issues/498 Issue TrackingPatch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-17266Gnome libsoup out-of-bounds read vulnerabilitylibsoup from versions 2.65.1 until 2.68.1 have a heap-based buffer over-read because soup_ntlm_parse_challenge() in soup-auth-ntlm.c does not properl…EPSS 2.8%9.8CVE-2018-12910Gnome libsoup out-of-bounds read vulnerabilityThe get_cookies function in soup-cookie-jar.c in libsoup 2.63.2 allows attackers to have unspecified impact via an empty hostname.EPSS 4.2%9.8CVE-2017-2885Gnome libsoup out-of-bounds write vulnerabilityAn exploitable stack based buffer overflow vulnerability exists in the GNOME libsoup 2.58. A specially crafted HTTP request can cause a stack overflo…EPSS 24%8.2CVE-2026-5119Gnome libsoup cleartext transmission vulnerabilityA flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext …EPSS 0.33%8.2CVE-2026-2436Gnome libsoup vulnerabilityA flaw was found in libsoup's SoupServer. A remote attacker could exploit a use-after-free vulnerability where the `soup_server_disconnect()` functio…EPSS 0.45%7.5CVE-2026-4271Gnome libsoup use after free vulnerabilityA flaw was found in libsoup, a library for handling HTTP requests. This vulnerability, known as a Use-After-Free, occurs in the HTTP/2 server impleme…EPSS 1.3%7.5CVE-2024-52530Gnome libsoup http request smuggling vulnerabilityGNOME libsoup before 3.6.0 allows HTTP request smuggling in some configurations because '\0' characters at the end of header names are ignored, i.e.,…EPSS 0.78%7.5CVE-2024-52532Gnome libsoup vulnerabilityGNOME libsoup before 3.6.1 has an infinite loop, and memory consumption. during the reading of certain patterns of WebSocket data from clients.EPSS 0.93%

Source: NIST National Vulnerability Database (record CVE-2026-2369), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.