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VulnerabilityPublished Updated

CVE-2026-93432: Red Hat build of Quarkus 3.27.6.redhat · Cross-site Scripting

Affects Red Hat build of Quarkus 3.27.6.redhatSource CVE Database V5

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Not known to be exploited · CVSS 6.1 Medium.

Data as of 2 Nov 2026, 22:58 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat build of Quarkus 3.27.6.redhatAffected–Fixed in–
Red HatRed Hat build of Quarkus 3.33.4.redhatAffected–Fixed in–
Red HatExploit IntelligenceAffected–Fixed in–
Red HatRed Hat build of Apache Camel 4 for Quarkus 3Affected–Fixed in–
Red HatRed Hat build of Apicurio Registry 3Affected–Fixed in–
Red HatRed Hat Build of KeycloakAffected–Fixed in–

AI-suggested

A security update for Red Hat build of Quarkus 3.27.6 has been released that addresses this vulnerability. Users should apply the update provided in Red Hat Security Advisory RHSA-2026:83082 to remediate the issue. Before applying this update, ensure all previously released errata relevant to your system have been applied. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigation steps are required once the update is applied.

Description

A flaw was found in the Quarkus Qute template engine. When the {#eval} section helper processes a sub-template, it fails to pass the parent template's content type information. This bypasses standard escaping mechanisms, allowing untrusted data to be output as raw, unescaped text. This vulnerability can lead to Cross-Site Scripting (XSS) and JSON Injection, potentially allowing a remote attacker to execute arbitrary code in a user's browser or manipulate data.

References

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