Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.6.14
Red Hat OpenShift Service Mesh 2.6.14, which is based on the open source Istio project, addresses a variety of problems in a microservice architecture by creating a centralized point of control in an application. Security Fix(es): * istio-operator-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * istio-cni-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * pilot-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * ratelimit-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * istio-operator-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * istio-cni-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * pilot-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * ratelimit-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * istio-operator-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * istio-cni-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * pilot-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * ratelimit-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * istio-operator-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * istio-cni-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * pilot-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * ratelimit-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * istio-operator-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728) * istio-cni-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728) * pilot-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728) * ratelimit-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728)
AI Analysis
Technical Summary
Red Hat OpenShift Service Mesh 2.6.14, based on Istio, fixes several security issues including CVE-2025-61726, a memory exhaustion vulnerability in the Go net/url package. This flaw allows an attacker to cause a denial of service by sending HTTP requests with a large number of unique query parameters, leading to excessive memory consumption and application crashes. Additional vulnerabilities fixed include unexpected TLS session resumption (CVE-2025-68121), potential code smuggling via doc comments (CVE-2025-61732), arbitrary file writes via malicious pkg-config directives (CVE-2025-61731), and excessive CPU consumption when building archive indexes (CVE-2025-61728). These vulnerabilities affect multiple components of the service mesh such as istio-operator-rhel8, istio-cni-rhel8, pilot-rhel8, and ratelimit-rhel8. Red Hat has released version 2.6.14 containing official fixes for these issues.
Potential Impact
The primary impact is denial of service due to resource exhaustion (memory and CPU), which can cause applications using the affected components to crash or become unresponsive. There is no impact on confidentiality or integrity. The vulnerabilities affect the availability of services running Red Hat OpenShift Service Mesh versions prior to 2.6.14. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released OpenShift Service Mesh version 2.6.14 which contains official fixes for these vulnerabilities. Users should update affected components to version 2.6.14 as soon as possible. Red Hat has not identified practical mitigations other than applying the update. No additional action is required beyond upgrading to the fixed version.
Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.6.14
Description
Red Hat OpenShift Service Mesh 2.6.14, which is based on the open source Istio project, addresses a variety of problems in a microservice architecture by creating a centralized point of control in an application. Security Fix(es): * istio-operator-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * istio-cni-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * pilot-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * ratelimit-rhel8: Unexpected session resumption in crypto/tls (CVE-2025-68121) * istio-operator-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * istio-cni-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * pilot-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * ratelimit-rhel8: Potential code smuggling via doc comments in cmd/cgo (CVE-2025-61732) * istio-operator-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * istio-cni-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * pilot-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * ratelimit-rhel8: cmd/go: Arbitrary file write via malicious pkg-config directive (CVE-2025-61731) * istio-operator-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * istio-cni-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * pilot-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * ratelimit-rhel8: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * istio-operator-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728) * istio-cni-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728) * pilot-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728) * ratelimit-rhel8: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728)
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat OpenShift Service Mesh 2.6.14, based on Istio, fixes several security issues including CVE-2025-61726, a memory exhaustion vulnerability in the Go net/url package. This flaw allows an attacker to cause a denial of service by sending HTTP requests with a large number of unique query parameters, leading to excessive memory consumption and application crashes. Additional vulnerabilities fixed include unexpected TLS session resumption (CVE-2025-68121), potential code smuggling via doc comments (CVE-2025-61732), arbitrary file writes via malicious pkg-config directives (CVE-2025-61731), and excessive CPU consumption when building archive indexes (CVE-2025-61728). These vulnerabilities affect multiple components of the service mesh such as istio-operator-rhel8, istio-cni-rhel8, pilot-rhel8, and ratelimit-rhel8. Red Hat has released version 2.6.14 containing official fixes for these issues.
Potential Impact
The primary impact is denial of service due to resource exhaustion (memory and CPU), which can cause applications using the affected components to crash or become unresponsive. There is no impact on confidentiality or integrity. The vulnerabilities affect the availability of services running Red Hat OpenShift Service Mesh versions prior to 2.6.14. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released OpenShift Service Mesh version 2.6.14 which contains official fixes for these vulnerabilities. Users should update affected components to version 2.6.14 as soon as possible. Red Hat has not identified practical mitigations other than applying the update. No additional action is required beyond upgrading to the fixed version.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3559
- Cve Count
- 5
- Additional Cves
- ["CVE-2025-61728","CVE-2025-61731","CVE-2025-61732","CVE-2025-68121"]
- State
- PUBLISHED
Threat ID: 6a16096ae29bf47b5062fa97
Added to database: 05/26/2026, 20:58:18 UTC
Last enriched: 08/14/2026, 19:43:43 UTC
Last updated: 09/12/2026, 00:47:04 UTC
Views: 82
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