Vulnerability-Lookup

GHSA-CVHP-44HV-W2PH

Vulnerability from github – Published: 2026-10-22 03:33 – Updated: 2026-10-22 03:33

Details

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability. rcmail_sendmail::extract_inline_images() used the media type taken from an inline image data URI without validating it, so a remote authenticated attacker could inject arbitrary MIME part headers into the outgoing message by placing CRLF sequences in that media type. Upstream fixed this in the commit “Fix mail header injection via media type in an inline image data URI”, which validates the media type with rcube_mime::is_mimetype_valid().

Severity

8.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-114716"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-99"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-22T02:16:59Z",
    "severity": "HIGH"
  },
  "details": "Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability. rcmail_sendmail::extract_inline_images() used the media type taken from an inline image data URI without validating it, so a remote authenticated attacker could inject arbitrary MIME part headers into the outgoing message by placing CRLF sequences in that media type. Upstream fixed this in the commit \u201cFix mail header injection via media type in an inline image data URI\u201d, which validates the media type with rcube_mime::is_mimetype_valid().",
  "id": "GHSA-cvhp-44hv-w2ph",
  "modified": "2026-10-22T03:33:36Z",
  "published": "2026-10-22T03:33:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114716"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/commit/7f3cc9cacb16cb3ab047fe8e3cba81db2023cdfc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/commit/adb9b9b3fd43e30af1c166b79494726d89f828eb"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/1151279"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.20"
    },
    {
      "type": "WEB",
      "url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.5"
    },
    {
      "type": "WEB",
      "url": "https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-114716 (GCVE-0-2026-114716)

Vulnerability from cvelistv5 – Published: 2026-10-22 01:17 – Updated: 2026-10-26 16:46

Summary

Severity

8.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-26 15:53 UTC

CWE

CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2252 records in the last 180 days details

References

6 references

URL	Tags
https://bugs.debian.org/1151279	issue-trackingthird-party-advisory
https://github.com/roundcube/roundcubemail/commit…	patch
https://roundcube.net/news/2026/10/19/security-up…	vendor-advisoryrelease-notes
https://github.com/roundcube/roundcubemail/releas…	release-notespatch
https://github.com/roundcube/roundcubemail/releas…	release-notespatch
https://github.com/roundcube/roundcubemail/commit…	patch

Impacted products

1 product

Vendor	Product	Version
Roundcube	Webmail	Affected: 1.6.0 , < 1.6.20 (semver) Affected: 1.7.0 , < 1.7.5 (semver) cpe:2.3:a:roundcube:webmail:::::::: cpe:2.3:a:roundcube:webmail::::::::

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{
  "containers": {
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        "metrics": [
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                "id": "CVE-2026-114716",
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-26T15:53:12.833157Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
          "dateUpdated": "2026-10-26T16:46:46.624Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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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.

Vulnerability timeline

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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.
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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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