SB2026012721 - Red Hat Enterprise Linux 7 Extended Lifecycle Support update for resource-agents
Published: January 27, 2026
Security Bulletin ID
SB2026012721
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2025-66418)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to missing limits on the number of links in the decompression chain when handling gzip or zstd data in the server response. A malicious server can send a response with a large amount of links and cause high CPU load, leading to a denial of service condition.
Remediation
Install update from vendor's website.