rubygem-mail security update
A really Ruby Mail handler. Security Fix(es): Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input through `q_value_decode` and `b_value_decode` in `lib/mail/utilities.rb`. An attacker can make a display name or local part decode to a different address than intended by supplying a malformed RFC 2047 encoded-word, including one that embeds extra encoded-word markers or additional text. The decoders only matched the first encoded-word and used a greedy charset capture, so a crafted header could cause the parsed `From`, `To`, or `Reply-To` value to omit or reshuffle literal text. Applications that display, compare, or authorize based on the decoded address can then present or act on a spoofed sender or recipient address.(CVE-2026-63435)
OESA-2026-4104
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:OESA-2026-4104
rubygem-mail
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.8.1-2.oe2403sp1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.8.1-2.oe2403sp1"
}
]
}
],
"package": {
"name": "rubygem-mail",
"purl": "pkg:rpm/openEuler/rubygem-mail&distro=openEuler-24.03-LTS-SP1",
"ecosystem": "openEuler:24.03-LTS-SP1"
},
"database_specific": {
"source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4104.json"
},
"ecosystem_specific": {
"src": [
"rubygem-mail-2.8.1-2.oe2403sp1.src.rpm"
],
"noarch": [
"rubygem-mail-2.8.1-2.oe2403sp1.noarch.rpm",
"rubygem-mail-doc-2.8.1-2.oe2403sp1.noarch.rpm"
]
}
}
]Publisher severity
medium
Source reference: /database_specific/severity
- Event
- #14764 · Revision 1
- Added to Heist Feed
- Publisher date