Red Hat Security Advisory: libsoup3 security update
Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages. libsoup uses the Glib main loop and is designed to work well with GTK applications. This enables GNOME applications to access HTTP servers on the network in a completely asynchronous fashion, very similar to the Gtk+ programming model (a synchronous operation mode is also supported for those who want it), but the SOAP parts were removed long ago. Security Fix(es): * libsoup: Heap Use-After-Free in libsoup message queue handling during HTTP/2 read completion (CVE-2025-12105) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The vulnerability CVE-2025-12105 is a heap use-after-free in libsoup3's message queue handling during HTTP/2 read completion. Libsoup is a C-based HTTP library designed for asynchronous network communication in GNOME applications. The flaw could lead to memory corruption due to improper handling of message queues. Red Hat has released an update for Red Hat Enterprise Linux 10.0 Extended Update Support to fix this issue. The advisory references Red Hat bugzilla BZ-2405992 and provides updated package versions to remediate the vulnerability.
Potential Impact
The use-after-free vulnerability could potentially lead to memory corruption, which might be exploited to cause application crashes or other unintended behavior. However, the advisory rates the impact as moderate and no known exploits in the wild have been reported. The vulnerability affects libsoup3 used in Red Hat Enterprise Linux 10.0 Extended Update Support across multiple architectures (x86_64, s390x, ppc64le, aarch64).
Mitigation Recommendations
Red Hat has released updated libsoup3 packages for Red Hat Enterprise Linux 10.0 Extended Update Support to address this vulnerability. Users should apply these official updates as detailed in the Red Hat advisory RHSA-2025:23437 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: libsoup3 security update
Description
Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages. libsoup uses the Glib main loop and is designed to work well with GTK applications. This enables GNOME applications to access HTTP servers on the network in a completely asynchronous fashion, very similar to the Gtk+ programming model (a synchronous operation mode is also supported for those who want it), but the SOAP parts were removed long ago. Security Fix(es): * libsoup: Heap Use-After-Free in libsoup message queue handling during HTTP/2 read completion (CVE-2025-12105) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-12105 is a heap use-after-free in libsoup3's message queue handling during HTTP/2 read completion. Libsoup is a C-based HTTP library designed for asynchronous network communication in GNOME applications. The flaw could lead to memory corruption due to improper handling of message queues. Red Hat has released an update for Red Hat Enterprise Linux 10.0 Extended Update Support to fix this issue. The advisory references Red Hat bugzilla BZ-2405992 and provides updated package versions to remediate the vulnerability.
Potential Impact
The use-after-free vulnerability could potentially lead to memory corruption, which might be exploited to cause application crashes or other unintended behavior. However, the advisory rates the impact as moderate and no known exploits in the wild have been reported. The vulnerability affects libsoup3 used in Red Hat Enterprise Linux 10.0 Extended Update Support across multiple architectures (x86_64, s390x, ppc64le, aarch64).
Mitigation Recommendations
Red Hat has released updated libsoup3 packages for Red Hat Enterprise Linux 10.0 Extended Update Support to address this vulnerability. Users should apply these official updates as detailed in the Red Hat advisory RHSA-2025:23437 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:23437
- Cve Count
- 1
Threat ID: 6a3da1d84853345fc1827db9
Added to database: 06/25/2026, 21:47:04 UTC
Last enriched: 06/25/2026, 22:17:39 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 25
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