Detections
Analytics

Oracle Linux 10 : libsoup3 (ELSA-2026-83618)

high Nessus Plugin ID 366321

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-83618 advisory.

 - CVE-2026-102557 libsoup3: libsoup: Heap buffer overflow during WebSocket message reassembly
 - CVE-2026-102556 libsoup3: libsoup: Heap buffer overflow from WebSocket Pong signal type confusion
 - CVE-2026-102558 libsoup3: libsoup: Heap buffer overflow during WebSocket receive-buffer growth
 - CVE-2026-102555 libsoup3: libsoup: Heap buffer overflow via uninitialized length in data-URI base64 decoding
 - CVE-2026-102560 libsoup3: libsoup: Heap buffer overflow during outgoing permessage-deflate buffer growth
 - CVE-2026-102559 libsoup3: libsoup: Heap buffer overflow during WebSocket client-frame masking
 - Fix CVE-2026-85197: http2 crash after connection destroyed
 - Fix CVE-2026-15711: Reject oversized WebSocket control frames
 - Fix CVE-2026-15709: bound decompressed WebSocket message size

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected libsoup3, libsoup3-devel and / or libsoup3-doc packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-83618.html

Plugin Details

Severity: High

ID: 366321

File Name: oraclelinux_ELSA-2026-83618.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/15/2026

Updated: 10/15/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Percentile: 96.19

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:C

CVSS Score Source: CVE-2026-102560

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:10, p-cpe:/a:oracle:linux:libsoup3-devel, p-cpe:/a:oracle:linux:libsoup3-doc, p-cpe:/a:oracle:linux:libsoup3

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Ease: No known exploits are available

Patch Publication Date: 10/15/2026

Vulnerability Publication Date: 9/29/2026

Reference Information

CVE: CVE-2026-102555, CVE-2026-102556, CVE-2026-102557, CVE-2026-102558, CVE-2026-102559, CVE-2026-102560