MEDIUMCVSS v3.1 5.9Vulnerability
CVE-2026-125756
postal-mime before 4.2.1 contains a parser differential vulnerability in its address parser that truncates the domain at folding whitespace or comments preceding a dot. Remote attackers can craft From headers that pass SPF/DKIM/DMARC alignment for their own subdomain while PostalMime.parse() reports a spoofed victim sender address.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-10T23:33:48.924589+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 5.9
- Retrieved at
- 2026-11-10T23:34:23+00:00
- Score
- 5.9
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-125756
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- First seen by Signal
- 2026-11-10T19:28:55+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Published at
- 2026-11-10T16:17:22.937
- Last modified
- 2026-11-10T19:21:13.490
Related Entities (1)
HAS_WEAKNESS (1)
Related research
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