8.6Alta

CVE-2026-102560Libsoup: libsoup: heap buffer overflow during outgoing permessage-deflate buffer growth

Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Red Hat Enterprise Linux 9; Red Hat Red Hat Enterpr… Publicada: 2026-09-29 20:15 (hace 1 mes)

Descripción

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.

Debilidad (CWE): CWE-125

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Fabricante	Producto	Versiones
enterprise linux	9	—
gnome	libsoup	< 3.7.3
redhat	enterprise linux	7.0
Red Hat	Red Hat Enterprise Linux 10	all versions
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	all versions
Red Hat	Red Hat Enterprise Linux 6	—
Red Hat	Red Hat Enterprise Linux 7	—
Red Hat	Red Hat Enterprise Linux 8	—
Red Hat	Red Hat Enterprise Linux 9	all versions
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	all versions
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	all versions
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	all versions
rhel e4s	9.2	—
rhel e4s	9.4	—
rhel eus	9.6	—

Referencias y parches

RHSA-2026:83384 vendor-advisoryThird Party Advisory
RHSA-2026:83618 vendor-advisoryThird Party Advisory
RHSA-2026:93445 vendor-advisory
RHSA-2026:93446 vendor-advisory
RHSA-2026:93447 vendor-advisory
RHSA-2026:93583 vendor-advisory
RHSA-2026:98453 vendor-advisory
RHSA-2026:98560 vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-102560 vdb-entryMitigationThird Party Advisory
RHBZ#2543296 issue-trackingIssue TrackingPatchThird Party Advisory

Coincidencias CPE (NVD) (5)

cpe:2.3:a:gnome:libsoup:*:*:*:*:*:*:*:* < 3.7.3
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:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

Puntuación CVSS

8.6Alta

Fuente: redhat · CVSS 3.1

Vector de ataque: Red
Complejidad: Baja
Privilegios: Ninguno
Interacción del usuario: Ninguna
Alcance: Sin cambio
Confidencialidad: Bajo
Integridad: Bajo
Disponibilidad: Alto

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

Todas las puntuaciones (3)

cna	CVSS 3.1	8.6Alta
secalert@redhat.com	CVSS 3.1	8.6Alta
nvd	CVSS 3.1	9.8Crítica

EPSS (probabilidad de explotación en 30 días)

0.61%

superior al 50 % de todas las CVE

Evaluación de CISA (SSVC)

Explotación: none
Automatizable: yes
Impacto técnico: partial

Cronología

ID reservado2026-09-29
Publicada2026-09-29 20:15
Llegó a IP-DB2026-10-24 23:48
Última actualización2026-11-11 16:17

Asignada por (CNA): redhat
Estado en NVD: Modified

Ver en la fuente: CVE.org · NVD

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