Upstream information
Description
Mail is an internet library for Ruby designed to handle email generation, parsing, and sending. Prior to 2.9.1, Mail::Utilities.q_value_decode and Mail::Utilities.b_value_decode used a single String#match and an overly greedy charset capture to decode only the first RFC 2047 encoded-word and mishandle surrounding or subsequent text. A crafted malformed encoded-word in an address display name or local part could cross ? delimiters and make decoded From, To, or Reply-To header values differ from the raw values inspected by a human reviewer or downstream parser, enabling apparent sender or recipient spoofing, phishing, or authorization-check bypass. This issue is fixed in version 2.9.1.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 5.3 | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | Low | Low |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise High Availability Extension 15 SP7 | rubygem-mail | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Availability Extension 15 SP4 | rubygem-mail | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP5 | rubygem-mail | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise High Availability Extension 15 | rubygem-mail | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP1 | rubygem-mail | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP2 | rubygem-mail | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP3 | rubygem-mail | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP6 | rubygem-mail | Affected |
| openSUSE Leap 15.3 | rubygem-mail | Affected |
| openSUSE Leap 15.4 | rubygem-mail | Affected |
| openSUSE Leap 15.5 | rubygem-mail | Affected |
| openSUSE Leap 15.6 | rubygem-mail | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Sep 2 12:13:13 2026CVE page last modified: Wed Sep 2 12:13:13 2026