Detections
Analytics

Atlassian Confluence 8.9.0 < 9.2.20 / 9.3.1 < 10.2.11 (CONFSERVER-103707)

high Nessus Plugin ID 316797

Synopsis

The remote Atlassian Confluence host is missing a security update.

Description

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-103707 advisory.

 - This HTTP Request/Response Smuggling vulnerability allows an unauthenticated attacker to manipulate HTTP requests in a way that causes the server to misinterpret request boundaries, potentially enabling request smuggling, security control bypass, or cache poisoning. (CVE-2026-24880)

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

Solution

Upgrade to Atlassian Confluence version 9.2.20, 10.2.11 or later.

See Also

https://jira.atlassian.com/browse/CONFSERVER-103707

Plugin Details

Severity: High

ID: 316797

File Name: confluence_confserver-103707.nasl

Version: 1.1

Type: Combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 5/26/2026

Updated: 5/26/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

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

CVSS Score Source: CVE-2026-24880

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:/a:atlassian:confluence

Required KB Items: installed_sw/Atlassian Confluence

Patch Publication Date: 5/5/2026

Vulnerability Publication Date: 3/23/2026

Reference Information

CVE: CVE-2026-24880

IAVA: 2026-A-0497