Bug 2514473

Summary: CVE-2026-9318 python-tablib: tablib: Arbitrary JavaScript execution via stored Cross-Site Scripting in HTML export [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Ganesh <gnaik>
Component: python-tablibAssignee: Fedora Infrastructure SIG <infra-sig>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: epel10CC: apevec, benson_muite, epel-packagers-sig, infra-sig, karlthered, openstack-sig, steve.traylen
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["5d883a46-fd25-4b3d-a189-558dc2a6721f"]}
Fixed In Version: python-tablib-3.0.0-2.el8 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-08-27 00:22:44 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2514468    

Description Ganesh 2026-08-12 04:00:45 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

tablib prior to 3.10.0 contains a stored cross-site scripting vulnerability in the HTML export functionality that allows attackers to execute arbitrary JavaScript by embedding malicious payloads in dataset titles, which are interpolated unsanitized into HTML output via the export_book method in the _html.py format handler. Attackers can rename worksheet sheets in imported files such as XLSX, ODS, XLS, or YAML with script payloads that are assigned to the Dataset title attribute and rendered unescaped inside an HTML h3 tag, leading to session hijacking, unauthorized administrative actions, and sensitive data exposure when the output is rendered in a browser.
Comment 1 Steve Traylen 2026-08-17 19:12:23 UTC 
https://src.fedoraproject.org/rpms/python-tablib/pull-request/5
Comment 2 Fedora Update System 2026-08-18 12:37:52 UTC 
FEDORA-EPEL-2026-31590148a4 (python-tablib-3.0.0-2.el8) has been submitted as an update to Fedora EPEL 8.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-31590148a4
Comment 3 Fedora Update System 2026-08-19 01:35:56 UTC 
FEDORA-EPEL-2026-31590148a4 has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-31590148a4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 4 Fedora Update System 2026-08-27 00:22:44 UTC 
FEDORA-EPEL-2026-31590148a4 (python-tablib-3.0.0-2.el8) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.