CVE-2026-9318

NameCVE-2026-9318
Descriptiontablib 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
taglib (PTS)bullseye1.11.1+dfsg.1-3vulnerable
bullseye (security)1.11.1+dfsg.1-3+deb11u1vulnerable
bookworm1.13-2+deb12u1vulnerable
trixie2.0.2-2vulnerable
forky, sid2.3.1-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
taglibsource(unstable)(unfixed)

Notes

https://github.com/jazzband/tablib/pull/668
Fixed by: https://github.com/jazzband/tablib/commit/b0ff39fb9b2f457e5332249b4cc2ec11eabf46ee (v3.10.0)

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