TI-2025-00640 Aliases CVE-2025-0752 GHSA-wpxv-x75w-vp46

Envoyproxy: openshift service mesh envoy http header sanitization bypass leading to dos and unauthorized access

LOW 32CWE-444Published 2025-01-28 · Updated 2026-02-24

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · Low · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00424 36th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	envoyproxy	2.6.3; 2.5.6	—	No fix listed	CNA
Red Hat	OpenShift Service Mesh 2	—	—	No fix listed	CNA
Red Hat	OpenShift Service Mesh 2	—	—	Not affected	CNA

envoyproxy Vendor— Affected 2.6.3; 2.5.6 Fixed in — No fix listed CNA
OpenShift Service Mesh 2 VendorRed Hat Affected — Fixed in — No fix listed CNA
OpenShift Service Mesh 2 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:redhat:openshift_service_mesh:2.5.6:::::::*	2.5.6	Vulnerable	Red Hat
cpe:2.3:a:redhat:openshift_service_mesh:2.6.3:::::::*	2.6.3	Vulnerable	Red Hat

cpe:2.3:a:redhat:openshift_service_mesh:2.5.6:*:*:*:*:*:*:* Versions 2.5.6 Vulnerable ·Red Hat
cpe:2.3:a:redhat:openshift_service_mesh:2.6.3:*:*:*:*:*:*:* Versions 2.6.3 Vulnerable ·Red Hat

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Product	Status	Plan or fix
OpenShift Service Mesh 2	Affected	No fix yet

Not affected: 1 product

OpenShift Service Mesh 2

Timeline

2026-10-02 Threatist record created from CVE-2025-0752
2026-10-03 Alias added: GHSA-wpxv-x75w-vp46

References

Advisory 2

TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
TI-2019-06950 Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a… CVSS 3.1HIGH 7.5
TI-2019-06949 Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a… CVSS 3.1HIGH 7.5
TI-2019-06948 Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a… CVSS 3.1HIGH 7.5
TI-2026-32429 Axios: Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge CVSS 3.1HIGH 7.7
TI-2019-06946 Some HTTP/2 implementations are vulnerable to window size manipulation and stream… CVSS 3.1HIGH 7.5

See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences