BREW-IMAP-BACKUP-CVE-2015-9097 (GHSA-Q86F-FMQF-QRF6)
Vulnerability from osv_homebrew – Published: 2026-08-13 16:59 – Updated: 2026-08-13 16:59 – Source website
VLAI
Summary
Mail Gem CRLF Injection vulnerability
Details
The mail gem before 2.5.5 for Ruby (aka A Really Ruby Mail Library) is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.
Severity
6.1 (Medium)
References
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "mail",
"resource_purl": "pkg:gem/mail@2.7.1",
"upstream_fixed_in": "2.5.5"
},
"package": {
"ecosystem": "Homebrew",
"name": "imap-backup",
"purl": "pkg:brew/imap-backup"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "16.6.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "RubyGems",
"key": "pkg:gem/mail@2.7.1",
"name": "mail",
"resource": "mail",
"strategy": "registry",
"subject_version": "2.7.1"
}
]
},
"details": "The mail gem before 2.5.5 for Ruby (aka A Really Ruby Mail Library) is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.",
"id": "BREW-imap-backup-CVE-2015-9097",
"modified": "2026-08-13T16:59:45Z",
"published": "2026-08-13T16:59:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-9097"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/issues/215"
},
{
"type": "WEB",
"url": "https://github.com/mikel/mail/pull/1097"
},
{
"type": "WEB",
"url": "https://github.com/mikel/mail/commit/72befdc4dab3e6e288ce226a7da2aa474cf5be83"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/137631"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-q86f-fmqf-qrf6"
},
{
"type": "PACKAGE",
"url": "https://github.com/mikel/mail"
},
{
"type": "WEB",
"url": "https://rubysec.com/advisories/mail-OSVDB-131677"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2015/12/11/3"
},
{
"type": "WEB",
"url": "http://www.mbsd.jp/Whitepaper/smtpi.pdf"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Mail Gem CRLF Injection vulnerability",
"upstream": [
"GHSA-q86f-fmqf-qrf6",
"CVE-2015-9097"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
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.
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.
Loading…
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.
Loading…