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CVE-2025-12799

Jastow: jastow cross-site scripting attack due to unsanitized uri

Published: Jul 7, 2026Updated: Jul 29, 2026 Sources: CVE List NVDCWE-79
6.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 84.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

Red Hat
commercial·US
Red Hat JBoss Enterprise Application Platform 8.1.7.GAOn-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10On-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8On-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9On-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform 7On-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform 8On-premWeb App
Enterprise Software / itsm-monitoring
Red Hat JBoss Enterprise Application Platform Expansion PackOn-premOS
Operating Systems / linux-distro
Red Hat Single Sign-On 7On-premSecurity Product
Security Products / identity-access-mgmt

Exploitability

Workaround Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:36342
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:36343
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:36344
access.redhat.com
and 3 more references View all →

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