Detections
Analytics

Atlassian Confluence 8.9.x < 9.2.24 / 9.3.x < 10.2.17 / 11.0.0 (CONFSERVER-104470)

high Nessus Plugin ID 368981

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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-104470 advisory.

 - In Bouncy Castle for Java before 1.85, RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path. This issue also affects Bouncy Castle for Java LTS before 2.73.12. (CVE-2026-12860)

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 9.2.24, 10.2.17, 11.0.0 or later.

See Also

https://jira.atlassian.com/browse/CONFSERVER-104470

Plugin Details

Severity: High

ID: 368981

File Name: confluence_confserver-104470.nasl

Version: 1.1

Type: Combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 10/21/2026

Updated: 10/21/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-12860

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:atlassian:confluence

Required KB Items: installed_sw/Atlassian Confluence

Exploit Ease: No known exploits are available

Patch Publication Date: 9/20/2026

Vulnerability Publication Date: 8/3/2026

Reference Information

CVE: CVE-2026-12860