SB2026011921 - Multiple vulnerabilities in Red Hat Multicluster Engine for Kubernetes 2.8
Published: January 19, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2022-21698)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within method label cardinality. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
2) Resource exhaustion (CVE-ID: CVE-2023-44487)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improperly control of consumption for internal resources when handling HTTP/2 requests with compressed HEADERS frames. A remote attacker can send a sequence of compressed HEADERS frames followed by RST_STREAM frames and perform a denial of service (DoS) attack, a.k.a. "Rapid Reset".
Note, the vulnerability is being actively exploited in the wild.
3) Infinite loop (CVE-ID: CVE-2024-24786)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when parsing data in an invalid JSON format within the protojson.Unmarshal() function. A remote attacker can consume all available system resources and cause denial of service conditions.
4) Resource exhaustion (CVE-ID: CVE-2025-30204)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources within the parse.ParseUnverified function when parsing authorization header. A remote attacker can send a specially crafted HTTP response to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.
5) Race condition (CVE-ID: CVE-2025-47907)
The vulnerability allows an attacker to tamper with the application.
The vulnerability exists due to a race condition when canceling a DB query. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system. A remote user can overwrite the expected results with those of another query, causing the call to Scan to return either unexpected results from the other query or an error.
6) Incorrect default permissions (CVE-ID: CVE-2025-7195)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due the user_setup script set insecure permissions for the /etc/passwd file. A local user with ability to execute commands within an affected container can escalate privileges on the system.
Remediation
Install update from vendor's website.