Critical 10.0Published Oct 6, 2026

CVE-2026-106102Quasar Framework: Stored/Reflected XSS via unescaped SSR meta tag rendering in getHead()

Updated under an hour ago (2026-10-19 08:23 UTC)

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It affects quasarframework quasar. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.30%, higher than 21% of scored CVEs.

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Exploited in the last 30 days

Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.22.0, the SSR-only getHead() serializer in ui/src/plugins/meta/Meta.js used getAttr() to interpolate values supplied through useMeta() into title, meta, link, and script markup without HTML text or quoted-attribute encoding. injectServerMeta() appended that output to the raw server-rendered response. An attacker who can influence dynamic page metadata, such as a post title, product name, excerpt, or display name, can terminate the intended HTML context and inject executable markup before hydration. The client-side apply() path is not affected because it uses DOM APIs that encode attributes. This issue is fixed in version 2.22.0.

CVSS: 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-79, CWE-116
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.30% (percentile 21)
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Oct 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

quasarframework quasar quasarframework:quasar (from the name)	before 2.22.0	CNA record

References

https://github.com/quasarframework/quasar/security/advisories/GHSA-pq96-jpmf-w254x-refsource-confirm
https://github.com/quasarframework/quasar/commit/11505afe5b5218f2c468f130181815b898fd1e40x-refsource-misc
https://github.com/quasarframework/quasar/releases/tag/quasar-v2.22.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.