High severity · published Jan 28, 2025
CVE-2025-0752
Envoyproxy: openshift service mesh envoy http header sanitization bypass leading to dos and unauthorized access
7.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OS
OpenShift Service Mesh 2 · Red Hat
All versions, or not specified · source: vendor
OS
Openshift Service Mesh · Redhat
2.5.6; 2.6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-0752
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-0752
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2025-0752
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2339115
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