CVE-2026-84683

HIGH
MEDIUM Priority: 0.02 BB Relevance: 57/100
Published: 2026-09-23 Modified: 2026-11-05 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Required
S: Changed
C: High
I: High
A: None

Description

A flaw was found in Red Hat Ansible Automation Platform's automation- controller. The HTML view of job, ad hoc command, project update, and inventory update standard output escapes HTML metacharacters but does not remove ANSI terminal escape sequences before conversion to HTML. An ANSI OSC 8 hyperlink sequence in the output is expanded into an HTML anchor whose href is not scheme- filtered or escaped, so a low-privileged user who can produce output -- or an external party whose data a playbook echoes -- can embed a javascript: link that is rendered into a text/html response with no Content-Security-Policy. When a higher-privileged user views the output page and clicks the link, attacker- controlled JavaScript executes in their authenticated session, allowing actions as that user up to full platform takeover.

References & Advisories (6)

https://access.redhat.com/errata/RHSA-2026:71113
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71114
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71177
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71179
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2527128
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

57 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

8.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS — Exploitation Probability

0.26%
Raw Score 0.002560
Percentile 17.3%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00256
2026-11-12
0.00256
2026-11-10
0.00256
2026-11-09
0.00256
2026-11-08
0.00256
2026-11-07
0.00256
2026-11-06
0.00256
2026-11-05
0.00256
2026-11-04
0.00256
2026-11-03
0.00256
2026-11-02
0.00256

Intelligence Sources

mitre ref →
nvd ref →