A flaw was found in libsoup. When the permessage-deflate WebSocket extension compresses a very large outgoing message, truncated size calculations used for GByteArray growth could wrap, causing zlib to write past the allocated buffer and resulting in a heap buffer overflow.
References
| Link | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:83384 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2026:83618 | Third Party Advisory |
| https://access.redhat.com/security/cve/CVE-2026-102560 | Mitigation Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2543296 | Issue Tracking Patch Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
16 Oct 2026, 13:56
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* cpe:2.3:a:gnome:libsoup:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
|
| References | () https://access.redhat.com/errata/RHSA-2026:83384 - Third Party Advisory | |
| References | () https://access.redhat.com/errata/RHSA-2026:83618 - Third Party Advisory | |
| References | () https://access.redhat.com/security/cve/CVE-2026-102560 - Mitigation, Third Party Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2543296 - Issue Tracking, Patch, Third Party Advisory | |
| First Time |
Gnome libsoup
Redhat Gnome Redhat enterprise Linux |
15 Oct 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
15 Oct 2026, 06:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
29 Sep 2026, 18:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-09-29 18:17
Updated : 2026-10-22 20:17
NVD link : CVE-2026-102560
Mitre link : CVE-2026-102560
CVE.ORG link : CVE-2026-102560
JSON object : View
Products Affected
redhat
- enterprise_linux
gnome
- libsoup
CWE
CWE-125
Out-of-bounds Read
