CVE-2026-84683Automation-controller: automation-controller-container: automation-controller: stored cross-site scripting in the job stdout html view via ansi osc 8 hyperlink sequences (javascript: anchor) enabling session takeover
- 8.7HighCVSS base score
- 0.26%Exploitation in 30 daysEPSS · top 83% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 22 days later
· 22 days later
Published
- 42 days later
· 42 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High8.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | High8.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.26% · top 83% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.7.
Affected products
Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 8
- unaffected 0:4.6.33-1.el8ap – < *
Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 8
- unaffected 0:4.6.33-1.el8ap – < *
Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 9
- unaffected 0:4.6.33-1.el9ap – < *
Red Hat · Red Hat Ansible Automation Platform 2.5 for RHEL 9
- unaffected 0:4.6.33-1.el9ap – < *
Red Hat · Red Hat Ansible Automation Platform 2.6 for RHEL 9
- unaffected 0:4.7.17-1.el9ap – < *
Red Hat · Red Hat Ansible Automation Platform 2.6 for RHEL 9
- unaffected 0:4.7.17-1.el9ap – < *
Red Hat · Red Hat Ansible Automation Platform 2.6
- unaffected 1789673739 – < *
Red Hat · Red Hat Ansible Automation Platform 2.7
- unaffected 1789580684 – < *
What to do
Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
References
References6
- RHSA-2026:71113 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:71114 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:71177 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:71179 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-84683 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2527128 (opens in a new tab)issue-trackingx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-85571 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-84683)Record last updated .