Jastow: jastow cross-site scripting attack due to unsanitized uri
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.2%
exploitation probability
0.2%top 84% of all CVEs
observed exploitation
nono source reports it
A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Affected products
Red Hat · Red Hat JBoss Enterprise Application Platform 7Red Hat · Red Hat JBoss Enterprise Application Platform 8Red Hat · Red Hat JBoss Enterprise Application Platform 8.1.7.GARed Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat · Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat · Red Hat Single Sign-On 7References
https://access.redhat.com/errata/RHSA-2026:36342https://access.redhat.com/errata/RHSA-2026:36343https://access.redhat.com/errata/RHSA-2026:36344https://access.redhat.com/errata/RHSA-2026:36345https://access.redhat.com/security/cve/CVE-2025-12799https://bugzilla.redhat.com/show_bug.cgi?id=2413071