CVE-2026-107360
Rubygem-safemode: safemode: jail allow-list bypass via op-assign expressions
CVSS Score
9.6
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in rubygem-safemode. Compound assignment expressions in sandboxed code are evaluated without mediating method calls through the Jail allow-list. An authenticated attacker who can supply template content can invoke arbitrary no-argument methods on objects exposed to the template renderer without Jail mediation, including destructive operations such as host deletion and disclosure of non-allow-listed object state.
| CWE | CWE-183 |
| Vendor | red hat |
| Product | red hat satellite 6.16 for rhel 8 |
| Published | Nov 12, 2026 |
| Last Updated | Nov 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
Red Hat / Red Hat Satellite 6.16 for RHEL 8
All versions affected Red Hat / Red Hat Satellite 6.16 for RHEL 9
All versions affected Red Hat / Red Hat Satellite 6.17 for RHEL 9
All versions affected Red Hat / Red Hat Satellite 6.18 for RHEL 9
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:99949 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:99950 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:99952 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-107360 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2547645
Credits
Red Hat would like to thank Kaya Emre Arikan for reporting this issue.