CVE-2026-23766_CVE-2026-23766

4.1 / 10

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

Description

Istio through 1.28.2 allows iptables rule injection for changing firewall behavior via the traffic.sidecar.istio.io/excludeInterfaces annotation. NOTE: the reporter's position is "this doesn't represent a security vulnerability (pod creators can already exclude sidecar injection entirely)."

Basic Information

ID CVE-2026-23766

Source mitre

Published Jan 15, 2026 at 19:18

Modified Jan 15, 2026 at 19:47

Affected Product

Vendor Istio

Product Istio

Affected Versions Istio Istio 0

CWE Classification

CWE-88

References

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    "lastseen": "",
    "description": "Istio through 1.28.2 allows iptables rule injection for changing firewall behavior via the traffic.sidecar.istio.io/excludeInterfaces annotation. NOTE: the reporter's position is \"this doesn't represent a security vulnerability (pod creators can already exclude sidecar injection entirely).\"",
    "published": "2026-01-15T19:18:50.806Z",
    "modified": "2026-01-15T19:47:53.919Z",
    "type": "cve",
    "title": "CVE-2026-23766",
    "source": "mitre",
    "references": "https://github.com/istio/istio/issues/58781\nhttps://github.com/istio/istio/pull/58785",
    "id": "CVE-2026-23766",
    "bulletinFamily": "",
    "cwe": [
        "CWE-88"
    ],
    "cvelist": null,
    "sourceData": "Istio Istio 0",
    "sourceHref": "",
    "cvss": {
        "score": 4.1,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Istio",
    "version": "0",
    "vendor": "Istio",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}