7.7

CVE-2026-12544: redhat satellite Deserialization of Untrusted Data

CVSS: 7.7v3.1HighAnalyzed
Published 01-10-2026Last modified 07-10-2026
Open JSON

Vulnerability summary

CVE-2026-12544 is a high (CVSS 7.7) Deserialization of Untrusted Data vulnerability in redhat satellite. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.9% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.7/10
010
High · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4
RHSA-2026:74503RHSA-2026:74504RHSA-2026:74505RHSA-2026:74506

Timeline

  1. 01-10-2026
    PublishedVulnerability first disclosed.
  2. 07-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in Foreman. The foreman-rake initialization logic in /usr/share/foreman/config/settings.rb contains a vulnerable code pattern where configuration data is processed through two distinct executable layers. This creates a multi-stage execution chain that allows for both Server-Side Template Injection (SSTI) and insecure deserialization. This vulnerability can lead to remote code execution, total infrastructure compromise and supply chain risk.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

02-10-202619-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat1 product
  • satellite6.0 | ≥ 6.16, < 6.16.4 | ≥ 6.17, < 6.17.12 | ≥ 6.19, < 6.19.5 | ≥ 6.18, < 6.18.10
Theforeman1 product

2 vendors · 2 products

References

7 links