Vulnerability-Lookup

CVE-2026-49214 (GCVE-0-2026-49214)

Vulnerability from cvelistv5 – Published: 2026-06-11 12:38 – Updated: 2026-06-11 12:47

Title

guzzlehttp/psr7 has CRLF Injection via URI Host Component

Summary

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. A vulnerable flow is: First, an application accepts a user-controlled URL. Second, the URL is used to construct a PSR-7 `Uri` or `Request`. Third, the host component contains CRLF or another header-unsafe character. Fourth, the host is copied into the PSR-7 `Host` header when no explicit `Host` header is provided. Finally, the request is serialized or sent by an HTTP client that does not independently reject the malformed host. In that flow, an attacker can cause the serialized request to contain additional attacker-controlled header lines. For example, a host containing `"\r\nX-Injected: yes"` can cause the generated `Host` header to span multiple HTTP header lines. Applications are affected when they use user-controlled URLs for outbound HTTP requests, URL forwarding, proxying, crawling, webhook delivery, or similar request-dispatch flows. In deployments involving HTTP/1.1 connection reuse, proxies, gateways, or load balancers, this malformed request may also contribute to request smuggling or cache poisoning, depending on how downstream components parse the request. The issue is patched in `2.10.2` and later. `1.x` is end-of-life and will not receive a patch. As a workaround, validate and reject all untrusted URI strings before constructing PSR-7 `Uri` or `Request` instances. Reject input containing ASCII control characters, whitespace, or DEL, including CRLF, tab, space, NUL, or DEL characters. Applications that forward requests should also ensure the final HTTP client or serializer rejects invalid URI and header data before writing requests to the network.

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-11 12:47 UTC

CWE

CWE-20 - Improper Input Validation
CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7994 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/guzzle/psr7/security/advisorie…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
guzzle	psr7	Affected: < 2.10.2	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-49214

Vulnerability from fkie_nvd - Published: 2026-06-11 13:16 - Updated: 2026-10-25 23:10

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/guzzle/psr7/security/advisories/GHSA-hq7v-mx3g-29hw	Mitigation, Vendor Advisory

Impacted products

	Vendor	Product	Version
	guzzlephp	psr-7	*

JSON

To clipboard

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    {
      "lang": "es",
      "value": "guzzlehttp/psr7 es una implementaci\u00f3n de la biblioteca de mensajes HTTP PSR-7 en PHP. Las versiones anteriores a la 2.10.2 no rechazaban caracteres de control ASCII, espacios en blanco o DEL en los componentes de host URI de origen. Un flujo vulnerable es: Primero, una aplicaci\u00f3n acepta una URL controlada por el usuario. Segundo, la URL se utiliza para construir un \u2019Uri\u2019 o \u2019Request\u2019 PSR-7. Tercero, el componente de host contiene CRLF u otro car\u00e1cter inseguro para encabezados. Cuarto, el host se copia en el encabezado \u2019Host\u2019 PSR-7 cuando no se proporciona un encabezado \u2019Host\u2019 expl\u00edcito. Finalmente, la solicitud es serializada o enviada por un cliente HTTP que no rechaza de forma independiente el host malformado. En ese flujo, un atacante puede hacer que la solicitud serializada contenga l\u00edneas de encabezado adicionales controladas por el atacante. Por ejemplo, un host que contenga \u2019\u2019\\r\\nX-Injected: yes\u2019\u2019 puede hacer que el encabezado \u2019Host\u2019 generado abarque m\u00faltiples l\u00edneas de encabezado HTTP. Las aplicaciones se ven afectadas cuando utilizan URLs controladas por el usuario para solicitudes HTTP salientes, reenv\u00edo de URLs, proxying, rastreo, entrega de webhooks o flujos de despacho de solicitudes similares. En implementaciones que involucran la reutilizaci\u00f3n de conexiones HTTP/1.1, proxies, gateways o balanceadores de carga, esta solicitud malformada tambi\u00e9n puede contribuir al contrabando de solicitudes o al envenenamiento de cach\u00e9, dependiendo de c\u00f3mo los componentes posteriores analicen la solicitud. El problema est\u00e1 parcheado en la \u20192.10.2\u2019 y versiones posteriores. \u20191.x\u2019 ha llegado al fin de su vida \u00fatil y no recibir\u00e1 un parche. Como soluci\u00f3n alternativa, valide y rechace todas las cadenas URI no confiables antes de construir instancias de \u2019Uri\u2019 o \u2019Request\u2019 PSR-7. Rechace la entrada que contenga caracteres de control ASCII, espacios en blanco o DEL, incluyendo caracteres CRLF, tab, espacio, NUL o DEL. Las aplicaciones que reenv\u00edan solicitudes tambi\u00e9n deben asegurarse de que el cliente HTTP o serializador final rechace los datos URI y de encabezado no v\u00e1lidos antes de escribir las solicitudes en la red."
    }
  ],
  "id": "CVE-2026-49214",
  "lastModified": "2026-10-25T23:10:00.167",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-49214",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-11T12:47:38.984022Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-11T13:16:33.300",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/guzzle/psr7/security/advisories/GHSA-hq7v-mx3g-29hw"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-93"
        },
        {
          "lang": "en",
          "value": "CWE-113"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-HQ7V-MX3G-29HW

Vulnerability from github – Published: 2026-06-11 13:04 – Updated: 2026-07-15 21:58

Summary

guzzlehttp/psr7 has CRLF Injection via URI Host Component

Details

Impact

guzzlehttp/psr7 did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. The issue requires a PSR-7 request to be serialized into a raw HTTP/1.x message, for example with GuzzleHttp\Psr7\Message::toString() or an equivalent custom serializer. Creating a Uri, Request, or other PSR-7 object alone is not sufficient. The malformed host must be copied into the serialized Host header without further validation.

A vulnerable flow is:

An application accepts a user-controlled URL.
The URL is used to construct a PSR-7 Uri or Request.
The host component contains CRLF or another header-unsafe character.
The request is serialized into a raw HTTP/1.x message without an explicit Host header.
The host is copied into the serialized Host header.
The serialized request is written to the network or otherwise processed by software that does not independently reject the malformed host.

In that flow, an attacker can cause the serialized request to contain additional attacker-controlled header lines. For example, a host containing "\r\nX-Injected: yes" can cause the generated Host header to span multiple HTTP header lines.

This is not the normal request-sending path used by guzzlehttp/guzzle. Applications using guzzlehttp/psr7 only through Guzzle's standard HTTP client APIs are not expected to be affected. Applications are most likely to be affected when they manually serialize PSR-7 requests, forward raw HTTP messages, or use custom transports, proxying, crawling, webhook delivery, or similar request-dispatch code that serializes requests without independently validating URI hosts and header data. In deployments involving HTTP/1.1 connection reuse, proxies, gateways, or load balancers, this malformed serialized request may also contribute to request smuggling or cache poisoning, depending on how downstream components parse the request.

Patches

The issue is patched in 2.10.2 and later. 1.x is end-of-life and will not receive a patch.

Workarounds

If you cannot upgrade immediately, validate and reject all untrusted URI strings before constructing PSR-7 Uri or Request instances. Reject input containing ASCII control characters, whitespace, or DEL, including CRLF, tab, space, NUL, or DEL characters:

if (preg_match('/[\x00-\x20\x7F]/', $untrustedUrl)) {
    throw new \InvalidArgumentException('Insecure URL detected');
}

Applications that manually serialize or forward requests should also ensure the final HTTP client, transport, or serializer rejects invalid URI and header data before writing requests to the network.

References

https://www.rfc-editor.org/rfc/rfc9112.html#section-3.2
https://www.rfc-editor.org/rfc/rfc9112.html#section-5
https://www.rfc-editor.org/rfc/rfc9112.html#section-11.2
https://www.rfc-editor.org/rfc/rfc9110.html#section-7.2

Severity

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "guzzlehttp/psr7"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.10.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-49214"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-113",
      "CWE-20",
      "CWE-93"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-11T13:04:47Z",
    "nvd_published_at": "2026-06-11T13:16:33Z",
    "severity": "MODERATE"
  },
  "details": "## Impact\n\n`guzzlehttp/psr7` did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. The issue requires a PSR-7 request to be serialized into a raw HTTP/1.x message, for example with `GuzzleHttp\\Psr7\\Message::toString()` or an equivalent custom serializer. Creating a `Uri`, `Request`, or other PSR-7 object alone is not sufficient. The malformed host must be copied into the serialized `Host` header without further validation.\n\nA vulnerable flow is:\n\n1. An application accepts a user-controlled URL.\n2. The URL is used to construct a PSR-7 `Uri` or `Request`.\n3. The host component contains CRLF or another header-unsafe character.\n4. The request is serialized into a raw HTTP/1.x message without an explicit `Host` header.\n5. The host is copied into the serialized `Host` header.\n6. The serialized request is written to the network or otherwise processed by software that does not independently reject the malformed host.\n\nIn that flow, an attacker can cause the serialized request to contain additional attacker-controlled header lines. For example, a host containing `\"\\r\\nX-Injected: yes\"` can cause the generated `Host` header to span multiple HTTP header lines.\n\nThis is not the normal request-sending path used by `guzzlehttp/guzzle`. Applications using `guzzlehttp/psr7` only through Guzzle\u0027s standard HTTP client APIs are not expected to be affected. Applications are most likely to be affected when they manually serialize PSR-7 requests, forward raw HTTP messages, or use custom transports, proxying, crawling, webhook delivery, or similar request-dispatch code that serializes requests without independently validating URI hosts and header data. In deployments involving HTTP/1.1 connection reuse, proxies, gateways, or load balancers, this malformed serialized request may also contribute to request smuggling or cache poisoning, depending on how downstream components parse the request.\n\n## Patches\n\nThe issue is patched in `2.10.2` and later. `1.x` is end-of-life and will not receive a patch.\n\n## Workarounds\n\nIf you cannot upgrade immediately, validate and reject all untrusted URI strings before constructing PSR-7 `Uri` or `Request` instances. Reject input containing ASCII control characters, whitespace, or DEL, including CRLF, tab, space, NUL, or DEL characters:\n\n```php\nif (preg_match(\u0027/[\\x00-\\x20\\x7F]/\u0027, $untrustedUrl)) {\n    throw new \\InvalidArgumentException(\u0027Insecure URL detected\u0027);\n}\n```\n\nApplications that manually serialize or forward requests should also ensure the final HTTP client, transport, or serializer rejects invalid URI and header data before writing requests to the network.\n\n## References\n\n* https://www.rfc-editor.org/rfc/rfc9112.html#section-3.2\n* https://www.rfc-editor.org/rfc/rfc9112.html#section-5\n* https://www.rfc-editor.org/rfc/rfc9112.html#section-11.2\n* https://www.rfc-editor.org/rfc/rfc9110.html#section-7.2",
  "id": "GHSA-hq7v-mx3g-29hw",
  "modified": "2026-07-15T21:58:03Z",
  "published": "2026-06-11T13:04:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/guzzle/psr7/security/advisories/GHSA-hq7v-mx3g-29hw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49214"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/guzzlehttp/psr7/CVE-2026-49214.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/guzzle/psr7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "guzzlehttp/psr7 has CRLF Injection via URI Host Component"
}

UBUNTU-CVE-2026-49214 (CVE-2026-49214)

Vulnerability from osv_ubuntu – Published: 2026-06-11 13:16 – Updated: 2026-10-17 09:44 – Source website

Details

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. A vulnerable flow is: First, an application accepts a user-controlled URL. Second, the URL is used to construct a PSR-7 Uri or Request. Third, the host component contains CRLF or another header-unsafe character. Fourth, the host is copied into the PSR-7 Host header when no explicit Host header is provided. Finally, the request is serialized or sent by an HTTP client that does not independently reject the malformed host. In that flow, an attacker can cause the serialized request to contain additional attacker-controlled header lines. For example, a host containing "\r\nX-Injected: yes" can cause the generated Host header to span multiple HTTP header lines. Applications are affected when they use user-controlled URLs for outbound HTTP requests, URL forwarding, proxying, crawling, webhook delivery, or similar request-dispatch flows. In deployments involving HTTP/1.1 connection reuse, proxies, gateways, or load balancers, this malformed request may also contribute to request smuggling or cache poisoning, depending on how downstream components parse the request. The issue is patched in 2.10.2 and later. 1.x is end-of-life and will not receive a patch. As a workaround, validate and reject all untrusted URI strings before constructing PSR-7 Uri or Request instances. Reject input containing ASCII control characters, whitespace, or DEL, including CRLF, tab, space, NUL, or DEL characters. Applications that forward requests should also ensure the final HTTP client or serializer rejects invalid URI and header data before writing requests to the network.

Severity

5.3 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-49214	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-49214	REPORT
	https://github.com/guzzle/psr7/security/advisorie…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "php-guzzlehttp-psr7",
            "binary_version": "1.2.2-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "php-guzzlehttp-psr7",
        "purl": "pkg:deb/ubuntu/php-guzzlehttp-psr7@1.2.2-1ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.0-1",
        "1.2.0-1",
        "1.2.1-1",
        "1.2.2-1",
        "1.2.2-1build1",
        "1.2.2-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "php-guzzlehttp-psr7",
            "binary_version": "1.4.2-0.1+deb10u2build0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "php-guzzlehttp-psr7",
        "purl": "pkg:deb/ubuntu/php-guzzlehttp-psr7@1.4.2-0.1+deb10u2build0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.2-0.1",
        "1.4.2-0.1+deb10u2build0.20.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "php-guzzlehttp-psr7",
            "binary_version": "1.8.3-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "php-guzzlehttp-psr7",
        "purl": "pkg:deb/ubuntu/php-guzzlehttp-psr7@1.8.3-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.0-1",
        "1.8.3-1",
        "1.8.3-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "php-guzzlehttp-psr7",
            "binary_version": "2.6.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "php-guzzlehttp-psr7",
        "purl": "pkg:deb/ubuntu/php-guzzlehttp-psr7@2.6.2-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.6.0-1",
        "2.6.1-1",
        "2.6.2-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "php-guzzlehttp-psr7",
            "binary_version": "2.7.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "php-guzzlehttp-psr7",
        "purl": "pkg:deb/ubuntu/php-guzzlehttp-psr7@2.7.1-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.0-3",
        "2.7.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "php-guzzlehttp-psr7",
            "binary_version": "2.13.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "php-guzzlehttp-psr7",
        "purl": "pkg:deb/ubuntu/php-guzzlehttp-psr7@2.13.0-1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.8.0-2",
        "2.9.0-2",
        "2.10.3-1",
        "2.12.0-1",
        "2.12.1-1",
        "2.12.3-1",
        "2.13.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "php-guzzlehttp-psr7",
            "binary_version": "2.8.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "php-guzzlehttp-psr7",
        "purl": "pkg:deb/ubuntu/php-guzzlehttp-psr7@2.8.0-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.1-1",
        "2.8.0-1",
        "2.8.0-2"
      ]
    }
  ],
  "aliases": [],
  "details": "guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. A vulnerable flow is: First, an application accepts a user-controlled URL. Second, the URL is used to construct a PSR-7 `Uri` or `Request`. Third, the host component contains CRLF or another header-unsafe character. Fourth, the host is copied into the PSR-7 `Host` header when no explicit `Host` header is provided. Finally, the request is serialized or sent by an HTTP client that does not independently reject the malformed host. In that flow, an attacker can cause the serialized request to contain additional attacker-controlled header lines. For example, a host containing `\"\\r\\nX-Injected: yes\"` can cause the generated `Host` header to span multiple HTTP header lines. Applications are affected when they use user-controlled URLs for outbound HTTP requests, URL forwarding, proxying, crawling, webhook delivery, or similar request-dispatch flows. In deployments involving HTTP/1.1 connection reuse, proxies, gateways, or load balancers, this malformed request may also contribute to request smuggling or cache poisoning, depending on how downstream components parse the request. The issue is patched in `2.10.2` and later. `1.x` is end-of-life and will not receive a patch. As a workaround, validate and reject all untrusted URI strings before constructing PSR-7 `Uri` or `Request` instances. Reject input containing ASCII control characters, whitespace, or DEL, including CRLF, tab, space, NUL, or DEL characters. Applications that forward requests should also ensure the final HTTP client or serializer rejects invalid URI and header data before writing requests to the network.",
  "id": "UBUNTU-CVE-2026-49214",
  "modified": "2026-10-17T09:44:20Z",
  "published": "2026-06-11T13:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-49214"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49214"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/guzzle/psr7/security/advisories/GHSA-hq7v-mx3g-29hw"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-49214"
  ]
}

Sightings

Author	Source	Type	Date	Other

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

CVE-2026-49214 (GCVE-0-2026-49214)

FKIE_CVE-2026-49214

GHSA-HQ7V-MX3G-29HW

Impact

Patches

Workarounds

References

UBUNTU-CVE-2026-49214 (CVE-2026-49214)

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