# Postalsys Postal-Mime vulnerabilities

Source: https://junglewise.ai/threats/technologies/postalsys-postal-mime  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/postalsys-postal-mime.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Postalsys Postal-Mime: 2 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-124016, was published on 10 November 2026. 1 vulnerability in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 2
- Last 30 days: 3
- Last 90 days: 3
- All time: 3 (0 critical, 0 exploited in the wild)

## About Postalsys Postal-Mime

Library for parsing and constructing MIME email messages.

## Latest Postalsys Postal-Mime vulnerabilities

- [CVE-2026-124016: postal-mime algorithmic complexity denial of service](https://junglewise.ai/threats/cve-2026-124016-postal-mime-before-4-2-1-contains-an-algorithmic-complexity) (medium, CVSS 5.3, published 10 Nov 2026)
- [CVE-2026-125756: postal-mime address parser domain truncation](https://junglewise.ai/threats/cve-2026-125756-postal-mime-before-4-2-1-contains-a-parser-differential) (medium, CVSS 5.9, published 10 Nov 2026)
- [postal-mime quadratic CPU consumption in RFC 2047 header decoding](https://junglewise.ai/threats/postal-mime-quadratic-cpu-consumption-when-decoding-a-header-of-many-196c0d88) (high, CVSS 7.5, published 23 Oct 2026)

## Most severe Postalsys Postal-Mime vulnerabilities

- [postal-mime quadratic CPU consumption in RFC 2047 header decoding](https://junglewise.ai/threats/postal-mime-quadratic-cpu-consumption-when-decoding-a-header-of-many-196c0d88) (high, CVSS 7.5, published 23 Oct 2026)
- [CVE-2026-125756: postal-mime address parser domain truncation](https://junglewise.ai/threats/cve-2026-125756-postal-mime-before-4-2-1-contains-a-parser-differential) (medium, CVSS 5.9, published 10 Nov 2026)
- [CVE-2026-124016: postal-mime algorithmic complexity denial of service](https://junglewise.ai/threats/cve-2026-124016-postal-mime-before-4-2-1-contains-an-algorithmic-complexity) (medium, CVSS 5.3, published 10 Nov 2026)

## Vulnerabilities per week

1 vulnerability in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 1 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 2 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Postalsys Postal-Mime vulnerabilities", https://junglewise.ai/threats/technologies/postalsys-postal-mime, 12 November 2026.