CVE-2025-13033
A vulnerability was identified in the email parsing library due to improper handling of specially formatted recipient email addresses.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability was identified in the email parsing library due to improper handling of specially formatted recipient email addresses. An attacker can exploit this flaw by crafting a recipient address that embeds an external address within quotes. This causes the application to misdirect the email to the attacker's external address instead of the intended internal recipient. This could lead to a significant data leak of sensitive information and allow an attacker to bypass security filters and access controls.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.54% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1286
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:15979
- https://access.redhat.com/errata/RHSA-2026:3751
- https://access.redhat.com/security/cve/CVE-2025-13033
- https://bugzilla.redhat.com/show_bug.cgi?id=2402179
- https://github.com/nodemailer/nodemailer
- https://github.com/nodemailer/nodemailer/commit/1150d99fba77280df2cfb1885c43df23109a8626
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-mm7p-fcc7-pg87
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.