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Fencer Intel
medium 4.3

CVE-2025-0754 json

Envoyproxy: openshift service mesh 2.6.3 and 2.5.6 envoy header handling allows log injection and potential spoofing

published last yr. modified 4mo ago also EUVD-2025-1855

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

The vulnerability was found in OpenShift Service Mesh 2.6.3 and 2.5.6. This issue occurs due to improper sanitization of HTTP headers by Envoy, particularly the x-forwarded-for header. This lack of sanitization can allow attackers to inject malicious payloads into service mesh logs, leading to log injection and spoofing attacks. Such injections can mislead logging mechanisms, enabling attackers to manipulate log entries or execute reflected cross-site scripting (XSS) attacks.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-0754 updated cvss 4.3

envoyproxy: OpenShift Service Mesh 2.6.3 and 2.5.6 Envoy Header Handling Allows Log Injection and Potential Spoofing

  • Red Hat OpenShift Service Mesh 2 openshift-service-mesh/proxyv2-rhel8, openshift-service-mesh/proxyv2-rhel9
    affected: no fix available, no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

  • Red Hat OpenShift Service Mesh 2

Classification

Weakness
  • CWE-117 Improper Output Neutralization for Logs

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.