FKIE_CVE-2026-33454

Vulnerability from fkie_nvd - Published: 2026-04-27 10:16 - Updated: 2026-10-26 22:10
Severity
9.4 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
9.4 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Summary
The Camel-Mail component is vulnerable to Camel message header injection. The custom header filter strategy used by the component (MailHeaderFilterStrategy) only filters the 'out' direction via setOutFilterStartsWith, while it does not configure the 'in' direction via setInFilterStartsWith. As a result, when a Camel application consumes mail through camel-mail (for example via from(\"imap://...\") or from(\"pop3://...\")) the inbound filter check is skipped and Camel-prefixed MIME headers are mapped unfiltered into the Exchange. An attacker who can deliver an email to a mailbox monitored by such a consumer can inject Camel-specific headers that, for some Camel components downstream of the mail consumer (such as camel-bean, camel-exec, or camel-sql), can alter the behaviour of the route. This is the same pattern that was previously addressed in camel-undertow (CVE-2025-30177) and the broader incoming-header filter (CVE-2025-27636 and CVE-2025-29891). This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.1. Users are recommended to upgrade to version 4.19.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.1. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6.
References
security@apache.orghttps://camel.apache.org/security/CVE-2026-33454.htmlVendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:17668
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:19835
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-33454
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2463181
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33454.json
Impacted products
Vendor Product Version
apache camel *
apache camel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
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          "defaultStatus": "unaffected",
          "packageName": "org.apache.camel:camel-mail",
          "product": "Apache Camel",
          "vendor": "Apache Software Foundation",
          "versions": [
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              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "4.15.0",
              "versionType": "semver"
            }
          ]
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      ],
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    },
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          "vendor": "Red Hat"
        },
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          "cpes": [
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          "packageName": "camel-mail",
          "product": "Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14",
          "vendor": "Red Hat"
        },
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          "cpes": [
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          "defaultStatus": "unaffected",
          "packageName": "camel-bean",
          "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
          "vendor": "Red Hat"
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          "product": "Red Hat build of Apache Camel for Spring Boot 4",
          "vendor": "Red Hat"
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          "cpes": [
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          "vendor": "Red Hat"
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          "cpes": [
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          "defaultStatus": "unaffected",
          "packageName": "camel-bean",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "vendor": "Red Hat"
        },
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          "vendor": "Red Hat"
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          "packageName": "camel-sql",
          "product": "Red Hat Process Automation 7",
          "vendor": "Red Hat"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3CB451CA-CD89-4D27-A289-1456E97FCB24",
              "versionEndExcluding": "4.14.6",
              "versionStartIncluding": "3.0.0",
              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Camel-Mail component is vulnerable to Camel message header injection. The custom header filter strategy used by the component (MailHeaderFilterStrategy) only filters the \u0027out\u0027 direction via setOutFilterStartsWith, while it does not configure the \u0027in\u0027 direction via setInFilterStartsWith. As a result, when a Camel application consumes mail through camel-mail (for example via from(\\\"imap://...\\\") or from(\\\"pop3://...\\\")) the inbound filter check is skipped and Camel-prefixed MIME headers are mapped unfiltered into the Exchange. An attacker who can deliver an email to a mailbox monitored by such a consumer can inject Camel-specific headers that, for some Camel components downstream of the mail consumer (such as camel-bean, camel-exec, or camel-sql), can alter the behaviour of the route. This is the same pattern that was previously addressed in camel-undertow (CVE-2025-30177) and the broader incoming-header filter (CVE-2025-27636 and CVE-2025-29891).\n\nThis issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.1.\n\nUsers are recommended to upgrade to version 4.19.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.1. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6."
    },
    {
      "lang": "es",
      "value": "El componente Camel-Mail es vulnerable a la inyecci\u00f3n de encabezados de mensajes de Camel. La estrategia de filtro de encabezados personalizada utilizada por el componente (MailHeaderFilterStrategy) solo filtra la direcci\u00f3n \u2019out\u2019 a trav\u00e9s de setOutFilterStartsWith, mientras que no configura la direcci\u00f3n \u2019in\u2019 a trav\u00e9s de setInFilterStartsWith. Como resultado, cuando una aplicaci\u00f3n Camel consume correo a trav\u00e9s de camel-mail (por ejemplo, a trav\u00e9s de from(\u2019imap://...\u2019) o from(\u2019pop3://...\u2019)) se omite la verificaci\u00f3n del filtro de entrada y los encabezados MIME con prefijo Camel se mapean sin filtrar en el Exchange. Un atacante que puede entregar un correo electr\u00f3nico a un buz\u00f3n monitoreado por dicho consumidor puede inyectar encabezados espec\u00edficos de Camel que, para algunos componentes Camel posteriores al consumidor de correo (como camel-bean, camel-exec o camel-sql), pueden alterar el comportamiento de la ruta. Este es el mismo patr\u00f3n que se abord\u00f3 previamente en camel-undertow (CVE-2025-30177) y el filtro de encabezado de entrada m\u00e1s amplio (CVE-2025-27636 y CVE-2025-29891).\n\nEste problema afecta a Apache Camel: desde 3.0.0 antes de 4.14.6, desde 4.15.0 antes de 4.18.1.\n\nSe recomienda a los usuarios actualizar a la versi\u00f3n 4.19.0, que corrige el problema. Si los usuarios est\u00e1n en la rama de versiones LTS 4.18.x, se les sugiere actualizar a 4.18.1. Si los usuarios est\u00e1n en la rama de versiones LTS 4.14.x, se les sugiere actualizar a 4.14.6."
    }
  ],
  "id": "CVE-2026-33454",
  "lastModified": "2026-10-26T22:10:00.163",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.1"
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        "type": "Secondary"
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          "availabilityImpact": "LOW",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
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        "type": "Secondary"
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        "ssvcData": {
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          "options": [
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            {
              "automatable": "yes"
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            {
              "technicalImpact": "partial"
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          "role": "CISA Coordinator",
          "timestamp": "2026-04-27T14:56:56.696569Z",
          "version": "2.0.3"
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  "published": "2026-04-27T10:16:07.853",
  "references": [
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      "source": "security@apache.org",
      "tags": [
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      ],
      "url": "https://camel.apache.org/security/CVE-2026-33454.html"
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    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
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      "source": "security@apache.org",
      "type": "Secondary"
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          "value": "CWE-1173"
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      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}



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