A flaw was found in OpenShift Service Mesh 2.6.3 and 2.5.6. Rate-limiter avoidance, access-control bypass, CPU and memory exhaustion, and replay attacks may be possible due to improper HTTP header sanitization in Envoy.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-1853 A flaw was found in OpenShift Service Mesh 2.6.3 and 2.5.6. Rate-limiter avoidance, access-control bypass, CPU and memory exhaustion, and replay attacks may be possible due to improper HTTP header sanitization in Envoy.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 31 Jul 2025 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat openshift Service Mesh
CPEs cpe:2.3:a:redhat:openshift_service_mesh:2.5.6:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_service_mesh:2.6.3:*:*:*:*:*:*:*
Vendors & Products Redhat openshift Service Mesh

Tue, 28 Jan 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 28 Jan 2025 09:45:00 +0000

Type Values Removed Values Added
Title envoyproxy: OpenShift Service Mesh Envoy HTTP Header Sanitization Bypass Leading to DoS and Unauthorized Access Envoyproxy: openshift service mesh envoy http header sanitization bypass leading to dos and unauthorized access
First Time appeared Redhat
Redhat service Mesh
CPEs cpe:/a:redhat:service_mesh:2
Vendors & Products Redhat
Redhat service Mesh
References

Tue, 28 Jan 2025 03:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in OpenShift Service Mesh 2.6.3 and 2.5.6. Rate-limiter avoidance, access-control bypass, CPU and memory exhaustion, and replay attacks may be possible due to improper HTTP header sanitization in Envoy.
Title envoyproxy: OpenShift Service Mesh Envoy HTTP Header Sanitization Bypass Leading to DoS and Unauthorized Access
Weaknesses CWE-444
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'}

threat_severity

Moderate


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-08-22T14:19:24.458Z

Reserved: 2025-01-27T14:16:01.506Z

Link: CVE-2025-0752

cve-icon Vulnrichment

Updated: 2025-01-28T14:35:20.372Z

cve-icon NVD

Status : Analyzed

Published: 2025-01-28T10:15:09.493

Modified: 2025-07-31T18:29:53.110

Link: CVE-2025-0752

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-01-21T00:00:00Z

Links: CVE-2025-0752 - Bugzilla

cve-icon OpenCVE Enrichment

No data.