{
  "GSD": {
    "alias": "CVE-2021-22696",
    "description": "CXF supports (via JwtRequestCodeFilter) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a \"request\" parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the \"request_uri\" parameter. CXF was not validating the \"request_uri\" parameter (apart from ensuring it uses \"https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section 10.4.1 of the spec. This issue affects Apache CXF versions prior to 3.4.3; Apache CXF versions prior to 3.3.10.",
    "id": "GSD-2021-22696",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:5134",
      "https://access.redhat.com/errata/RHSA-2022:7273"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-22696"
      ],
      "details": "CXF supports (via JwtRequestCodeFilter) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a \"request\" parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the \"request_uri\" parameter. CXF was not validating the \"request_uri\" parameter (apart from ensuring it uses \"https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section 10.4.1 of the spec. This issue affects Apache CXF versions prior to 3.4.3; Apache CXF versions prior to 3.3.10.",
      "id": "GSD-2021-22696",
      "modified": "2023-12-13T01:23:24.305708Z",
      "schema_version": "1.4.0"
    }
  },
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            "description": [
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                "value": "CWE-400 Uncontrolled Resource Consumption"
              }
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          {
            "name": "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc",
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          },
          {
            "name": "[cxf-dev] 20210402 CVE-2021-22696: OAuth 2 authorization service vulnerable to DDos attacks",
            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/r8651c06212c56294a1c0ea61a5ad7790c06502209c03f05c0c7c9914@%3Cdev.cxf.apache.org%3E"
          },
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            "name": "[oss-security] 20210402 CVE-2021-22696: Apache CXF: OAuth 2 authorization service vulnerable to DDos attacks",
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          {
            "name": "[cxf-users] 20210402 CVE-2021-22696: OAuth 2 authorization service vulnerable to DDos attacks",
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            "url": "https://lists.apache.org/thread.html/r8651c06212c56294a1c0ea61a5ad7790c06502209c03f05c0c7c9914@%3Cusers.cxf.apache.org%3E"
          },
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            "name": "[cxf-commits] 20210402 svn commit: r1073270 - in /websites/production/cxf/content: cache/main.pageCache security-advisories.data/CVE-2021-22696.txt.asc security-advisories.html",
            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4@%3Ccommits.cxf.apache.org%3E"
          },
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            "name": "[announce] 20210402 [Apache CXF] CVE-2021-22696: OAuth 2 authorization service vulnerable to DDos attacks",
            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/r6445001cc5f9a2bb1e6316993753306e054bdd1d702656b7cbe59045@%3Cannounce.apache.org%3E"
          },
          {
            "name": "[cxf-commits] 20210616 svn commit: r1075801 - in /websites/production/cxf/content: cache/main.pageCache index.html security-advisories.data/CVE-2021-30468.txt.asc security-advisories.html",
            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e@%3Ccommits.cxf.apache.org%3E"
          },
          {
            "name": "https://www.oracle.com/security-alerts/cpuoct2021.html",
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            "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
          },
          {
            "name": "https://www.oracle.com/security-alerts/cpuapr2022.html",
            "refsource": "MISC",
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          }
        ]
      },
      "source": {
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "[3.4.0,3.4.3),(,3.3.10)",
          "affected_versions": "All versions starting from 3.4.0 before 3.4.3, all versions before 3.3.10",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-918",
            "CWE-937"
          ],
          "date": "2021-10-21",
          "description": "CXF supports (via JwtRequestCodeFilter) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a \"request\" parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the \"request_uri\" parameter. CXF was not validating the \"request_uri\" parameter (apart from ensuring it uses \"https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section 10.4.1 of the spec. This issue affects Apache CXF versions prior to 3.4.3; Apache CXF versions prior to 3.3.10.",
          "fixed_versions": [
            "3.3.10"
          ],
          "identifier": "CVE-2021-22696",
          "identifiers": [
            "GHSA-7q4h-pj78-j7vg",
            "CVE-2021-22696"
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          "not_impacted": "All versions before 3.4.0, all versions starting from 3.3.10 before 3.4.3",
          "package_slug": "maven/org.apache.cxf/apache-cxf",
          "pubdate": "2021-05-13",
          "solution": "Upgrade to version 3.3.10 or above.",
          "title": "Server-Side Request Forgery (SSRF)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22696",
            "https://github.com/apache/cxf/commit/40503a53914758759894f704bbf139ae89ace286",
            "https://github.com/apache/cxf/commit/aa789c5c4686597a7bdef2443909ab491fc2bc04",
            "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc",
            "https://lists.apache.org/thread.html/r6445001cc5f9a2bb1e6316993753306e054bdd1d702656b7cbe59045@%3Cannounce.apache.org%3E",
            "https://lists.apache.org/thread.html/r8651c06212c56294a1c0ea61a5ad7790c06502209c03f05c0c7c9914@%3Cdev.cxf.apache.org%3E",
            "https://lists.apache.org/thread.html/r8651c06212c56294a1c0ea61a5ad7790c06502209c03f05c0c7c9914@%3Cusers.cxf.apache.org%3E",
            "https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4@%3Ccommits.cxf.apache.org%3E",
            "http://www.openwall.com/lists/oss-security/2021/04/02/2",
            "https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e@%3Ccommits.cxf.apache.org%3E",
            "https://www.oracle.com/security-alerts/cpuoct2021.html",
            "https://github.com/advisories/GHSA-7q4h-pj78-j7vg"
          ],
          "uuid": "6022efde-a476-42c4-a7d8-8f783422bfda"
        },
        {
          "affected_range": "(,3.3.10),[3.4.0,3.4.3)",
          "affected_versions": "All versions before 3.3.10, all versions starting from 3.4.0 before 3.4.3",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "CWE-1035",
            "CWE-918",
            "CWE-937"
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          "date": "2022-05-12",
          "description": "CXF supports (via `JwtRequestCodeFilter`) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a `request` parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the `request_uri` parameter. CXF was not validating the `request_uri` parameter (apart from ensuring it uses https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section of the spec.",
          "fixed_versions": [],
          "identifier": "CVE-2021-22696",
          "identifiers": [
            "CVE-2021-22696"
          ],
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          "package_slug": "maven/org.apache.cxf/cxf-api",
          "pubdate": "2021-04-02",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22696",
            "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc"
          ],
          "uuid": "0ce4936b-31d7-4016-896e-f3de329405f0"
        },
        {
          "affected_range": "(,3.3.10),[3.4.0,3.4.3)",
          "affected_versions": "All versions before 3.3.10, all versions starting from 3.4.0 before 3.4.3",
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          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
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            "CWE-918",
            "CWE-937"
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          "date": "2022-05-12",
          "description": "CXF supports (via `JwtRequestCodeFilter`) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a `request` parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the `request_uri` parameter. CXF was not validating the `request_uri` parameter (apart from ensuring it uses https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section of the spec.",
          "fixed_versions": [
            "3.3.10",
            "3.4.3"
          ],
          "identifier": "CVE-2021-22696",
          "identifiers": [
            "CVE-2021-22696"
          ],
          "not_impacted": "All versions starting from 3.3.10 before 3.4.0, all versions starting from 3.4.3",
          "package_slug": "maven/org.apache.cxf/cxf-core",
          "pubdate": "2021-04-02",
          "solution": "Upgrade to versions 3.3.10, 3.4.3 or above.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22696",
            "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc"
          ],
          "uuid": "ef9eb1f8-694e-4e45-b5ac-19ddbe4f3772"
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        {
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          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "CWE-918",
            "CWE-937"
          ],
          "date": "2022-05-12",
          "description": "CXF supports (via `JwtRequestCodeFilter`) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a `request` parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the `request_uri` parameter. CXF was not validating the `request_uri` parameter (apart from ensuring it uses https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section of the spec.",
          "fixed_versions": [
            "3.3.10",
            "3.4.3"
          ],
          "identifier": "CVE-2021-22696",
          "identifiers": [
            "CVE-2021-22696"
          ],
          "not_impacted": "All versions starting from 3.3.10 before 3.4.0, all versions starting from 3.4.3",
          "package_slug": "maven/org.apache.cxf/cxf-rt-frontend-jaxrs",
          "pubdate": "2021-04-02",
          "solution": "Upgrade to versions 3.3.10, 3.4.3 or above.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22696",
            "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc"
          ],
          "uuid": "5ccb37e6-0c71-41ae-8ded-b287d9000493"
        },
        {
          "affected_range": "(,3.3.10),[3.4.0,3.4.3)",
          "affected_versions": "All versions before 3.3.10, all versions starting from 3.4.0 before 3.4.3",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-918",
            "CWE-937"
          ],
          "date": "2022-05-12",
          "description": "Instead of sending a JWT token as a `request` parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the `request_uri` parameter. CXF was not validating the `request_uri` parameter and was making a REST request to the parameter in the request to retrieve a token.",
          "fixed_versions": [
            "3.3.10",
            "3.4.3"
          ],
          "identifier": "CVE-2021-22696",
          "identifiers": [
            "CVE-2021-22696"
          ],
          "not_impacted": "All versions starting from 3.3.10 before 3.4.0, all versions starting from 3.4.3",
          "package_slug": "maven/org.apache.cxf/cxf-rt-rs-security-oauth2",
          "pubdate": "2021-04-02",
          "solution": "Upgrade to versions 3.3.10, 3.4.3 or above.",
          "title": "Server-Side Request Forgery (SSRF)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22696",
            "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc"
          ],
          "uuid": "43078a55-2b9e-452e-9bb5-c3cd73b92c4c"
        },
        {
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          "affected_versions": "All versions before 3.3.10, all versions starting from 3.4.0 before 3.4.3",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "CWE-918",
            "CWE-937"
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          "date": "2022-05-12",
          "description": "CXF supports (via `JwtRequestCodeFilter`) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a `request` parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the `request_uri` parameter. CXF was not validating the `request_uri` parameter (apart from ensuring it uses https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section of the spec.",
          "fixed_versions": [
            "3.3.10",
            "3.4.3"
          ],
          "identifier": "CVE-2021-22696",
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          ],
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          "pubdate": "2021-04-02",
          "solution": "Upgrade to versions 3.3.10, 3.4.3 or above.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22696",
            "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc"
          ],
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          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
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            "CWE-918",
            "CWE-937"
          ],
          "date": "2022-05-12",
          "description": "CXF supports (via `JwtRequestCodeFilter`) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a `request` parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the `request_uri` parameter. CXF was not validating the `request_uri` parameter (apart from ensuring it uses https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section of the spec.",
          "fixed_versions": [
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          "identifier": "CVE-2021-22696",
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          "pubdate": "2021-04-02",
          "solution": "Upgrade to versions 3.3.10, 3.4.3 or above.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22696",
            "https://cxf.apache.org/security-advisories.data/CVE-2021-22696.txt.asc",
            "https://lists.apache.org/thread.html/r6445001cc5f9a2bb1e6316993753306e054bdd1d702656b7cbe59045@%3Cannounce.apache.org%3E",
            "https://lists.apache.org/thread.html/r8651c06212c56294a1c0ea61a5ad7790c06502209c03f05c0c7c9914@%3Cdev.cxf.apache.org%3E",
            "https://lists.apache.org/thread.html/r8651c06212c56294a1c0ea61a5ad7790c06502209c03f05c0c7c9914@%3Cusers.cxf.apache.org%3E",
            "https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4@%3Ccommits.cxf.apache.org%3E"
          ],
          "uuid": "319654cb-e185-43cd-8c06-3ae8702d7557"
        },
        {
          "affected_range": "(,3.3.10),[3.4.0,3.4.3)",
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          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
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            "CWE-918",
            "CWE-937"
          ],
          "date": "2022-05-12",
          "description": "CXF supports (via `JwtRequestCodeFilter`) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a `request` parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the `request_uri` parameter. CXF was not validating the `request_uri` parameter (apart from ensuring it uses https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section of the spec.",
          "fixed_versions": [
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          "pubdate": "2021-04-02",
          "solution": "Upgrade to versions 3.3.10, 3.4.3 or above.",
          "title": "Uncontrolled Resource Consumption",
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      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
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          "obtainAllPrivilege": false,
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          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-05-12T14:36Z",
      "publishedDate": "2021-04-02T10:15Z"
    }
  }
}