CVE-2026-31908 (GCVE-0-2026-31908)

Vulnerability from cvelistv5 – Published: 2026-04-14 08:06 – Updated: 2026-04-14 08:37
VLAI?
Title
Apache APISIX: forward auth plugin allows header injection
Summary
Header injection vulnerability in Apache APISIX. The attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers. This issue affects Apache APISIX: from 2.12.0 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the issue.
Severity ?
No CVSS data available.
CWE
  • CWE-75 - Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache APISIX Affected: 2.12.0 , ≤ 3.15.0 (semver)
Create a notification for this product.
Credits
SeungMyung Lee
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-04-14T08:37:15.159Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/14/3"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Apache APISIX",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "3.15.0",
              "status": "affected",
              "version": "2.12.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "SeungMyung Lee"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eHeader injection vulnerability in Apache APISIX.\u003c/p\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eThe attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers.\u003c/span\u003e\u003cbr\u003e\u003cp\u003eThis issue affects Apache APISIX: from 2.12.0 through 3.15.0.\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 3.16.0, which fixes the issue.\u003c/p\u003e"
            }
          ],
          "value": "Header injection vulnerability in Apache APISIX.\n\nThe attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers.\nThis issue affects Apache APISIX: from 2.12.0 through 3.15.0.\n\nUsers are recommended to upgrade to version 3.16.0, which fixes the issue."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-75",
              "description": "CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-14T08:06:18.026Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/sob643s5lztov7x579j8o0c444t36n6b"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache APISIX: forward auth plugin allows header injection",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-31908",
    "datePublished": "2026-04-14T08:06:18.026Z",
    "dateReserved": "2026-03-10T08:20:51.948Z",
    "dateUpdated": "2026-04-14T08:37:15.159Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-31908",
      "date": "2026-04-14",
      "epss": "0.00029",
      "percentile": "0.08028"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-31908\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2026-04-14T09:16:35.650\",\"lastModified\":\"2026-04-14T09:16:35.650\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Header injection vulnerability in Apache APISIX.\\n\\nThe attacker can take advantage of certain configuration in forward-auth plugin to inject malicious headers.\\nThis issue affects Apache APISIX: from 2.12.0 through 3.15.0.\\n\\nUsers are recommended to upgrade to version 3.16.0, which fixes the issue.\"}],\"metrics\":{},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-75\"}]}],\"references\":[{\"url\":\"https://lists.apache.org/thread/sob643s5lztov7x579j8o0c444t36n6b\",\"source\":\"security@apache.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/04/14/3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…