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        "cveId": "CVE-2026-31908",
        "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "state": "PUBLISHED",
        "assignerShortName": "apache",
        "dateReserved": "2026-03-10T08:20:51.948Z",
        "datePublished": "2026-04-14T08:06:18.026Z",
        "dateUpdated": "2026-04-16T12:06:00.176Z"
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                    "defaultStatus": "unaffected",
                    "product": "Apache APISIX",
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                    "versions": [
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                            "lessThanOrEqual": "3.15.0",
                            "status": "affected",
                            "version": "2.12.0",
                            "versionType": "semver"
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            ],
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                {
                    "lang": "en",
                    "type": "reporter",
                    "value": "SeungMyung Lee"
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                            "value": "<p>Header injection vulnerability in Apache APISIX.</p><span style=\"background-color: rgb(255, 255, 255);\">The attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers.</span><br><p>This issue affects Apache APISIX: from 2.12.0 through 3.15.0.</p><p>Users are recommended to upgrade to version 3.16.0, which fixes the issue.</p>"
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                            "cweId": "CWE-75",
                            "description": "CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)",
                            "lang": "en",
                            "type": "CWE"
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                    "tags": [
                        "vendor-advisory"
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                    "url": "https://lists.apache.org/thread/sob643s5lztov7x579j8o0c444t36n6b"
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            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "Apache APISIX: forward auth plugin allows header injection",
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        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2026/04/14/3"
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                    "dateUpdated": "2026-04-14T08:37:15.159Z"
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                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 9.1,
                            "attackVector": "NETWORK",
                            "baseSeverity": "CRITICAL",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
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                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-16T11:42:56.365669Z",
                                "id": "CVE-2026-31908",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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