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CVE-2026-107360

CRITICALCVSS 9.6/10EPSS 0.47%

Last modified

CVE-2026-107360 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. A flaw was found in rubygem-safemode. Compound assignment expressions in sandboxed code are evaluated without mediating method calls through the Jail allow-list. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.6/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

EPSS Probability
0.47%

41.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Red HatRed Hat Satellite 6.16 for RHEL 8All versions
Red HatRed Hat Satellite 6.16 for RHEL 9All versions
Red HatRed Hat Satellite 6.17 for RHEL 9All versions
Red HatRed Hat Satellite 6.18 for RHEL 9All versions
Red HatRed Hat Satellite 6.19 for RHEL 9All versions

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-107360?
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.
How severe is CVE-2026-107360?
CVE-2026-107360 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.
How do I fix CVE-2026-107360?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST