ghsa:GHSA-F2HQ-32VH-53CC: postal-mime >= 3.0.0, < 4.0.8

postal-mime: Quadratic CPU consumption when decoding a header of many joinable RFC 2047 base64 encoded words. Affected range: >= 3.0.0, < 4.0.8. Fixed version: 4.0.8.

Affected technology

postal-mime · >= 3.0.0, < 4.0.8
Vendor not specified by the source

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 24-Oct-2026 01:47 UTC

Product: postal-mime
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-24 01:45:06.114611+00:00 UTC

Stable permalink: https://cybercodered.org/item/adv-ghsa-ghsa-f2hq-32vh-53cc.html