# github.com/axllent/mailpit (Go) vulnerabilities

Source: https://junglewise.ai/threats/technologies/github-com-axllent-mailpit  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/github-com-axllent-mailpit.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 15 vulnerabilities in github.com/axllent/mailpit (Go): 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-67448, was published on 20 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 4
- All time: 15 (0 critical, 0 exploited in the wild)

## About github.com/axllent/mailpit (Go)

Mailpit is an email and SMTP testing tool with a web interface and API, written in Go.

## Latest github.com/axllent/mailpit (Go) vulnerabilities

- [CVE-2026-67448: Axllent Mailpit WebSocket origin check bypass via percent-encoded path](https://junglewise.ai/threats/cve-2026-67448-axllent-mailpit-websocket-origin-check-bypass-via-percent-encoded) (medium, CVSS 6.5, published 20 Aug 2026)
- [CVE-2026-67447: Mailpit SMTP DATA reader unbounded line buffering denial of service](https://junglewise.ai/threats/cve-2026-67447-mailpit-smtp-data-reader-unbounded-line-buffering-denial-of) (medium, CVSS 5.3, published 20 Aug 2026)
- [CVE-2026-67446: Mailpit thumbnail generation unbounded image dimension decode](https://junglewise.ai/threats/cve-2026-67446-mailpit-thumbnail-generation-unbounded-image-dimension-decode) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-67445: Mailpit SMTP command parser unbounded buffering denial of service](https://junglewise.ai/threats/cve-2026-67445-mailpit-smtp-command-parser-unbounded-buffering-denial-of-service) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-48824: axllent Mailpit memory exhaustion DoS in multiple API endpoints](https://junglewise.ai/threats/cve-2026-48824-axllent-mailpit-memory-exhaustion-dos-in-multiple-api-endpoints) (medium, CVSS 5.3, published 20 Jul 2026)
- [CVE-2026-45713: axllent Mailpit denial of service via unbounded message size](https://junglewise.ai/threats/cve-2026-45713-axllent-mailpit-denial-of-service-via-unbounded-message-size) (high, CVSS 7.5, published 20 Jul 2026)
- [CVE-2026-45712: axllent Mailpit denial of service via race condition in proxy handler](https://junglewise.ai/threats/cve-2026-45712-axllent-mailpit-denial-of-service-via-race-condition-in-proxy) (medium, CVSS 5.9, published 20 Jul 2026)
- [CVE-2026-45711: axllent Mailpit path traversal in mailpit dump command](https://junglewise.ai/threats/cve-2026-45711-axllent-mailpit-path-traversal-in-mailpit-dump-command) (medium, CVSS 5.9, published 20 Jul 2026)
- [CVE-2026-45709: Axllent Mailpit SSRF in HTML Check API](https://junglewise.ai/threats/cve-2026-45709-axllent-mailpit-ssrf-in-html-check-api) (medium, CVSS 5.8, published 20 Jul 2026)
- [CVE-2026-55187: axllent Mailpit SSRF bypass in Link Check API via IPv6 transition forms](https://junglewise.ai/threats/cve-2026-55187-axllent-mailpit-ssrf-bypass-in-link-check-api-via-ipv6-transition) (medium, CVSS 5.8, published 10 Jul 2026)
- [CVE-2026-27808: GO-2026-4558 - Mailpit is Vulnerable to Server-Side Request Forgery (SSRF) via Link Check API in github.com/axllent/mailpit](https://junglewise.ai/threats/cve-2026-27808-mailpit-is-vulnerable-to-server-side-request-forgery-ssrf-via) (low, CVSS 3.1, published 27 Feb 2026)
- [CVE-2026-23829: GO-2026-4333 - Mailpit has an SMTP Header Injection via Regex Bypass in github.com/axllent/mailpit](https://junglewise.ai/threats/cve-2026-23829-mailpit-has-an-smtp-header-injection-via-regex-bypass) (low, CVSS 3.1, published 3 Feb 2026)
- [CVE-2026-23845: GO-2026-4345 - Mailpit has a Server-Side Request Forgery (SSRF) via HTML Check API in github.com/axllent/mailpit](https://junglewise.ai/threats/cve-2026-23845-mailpit-has-a-server-side-request-forgery-ssrf-via-html-check-api) (low, CVSS 3.1, published 3 Feb 2026)
- [CVE-2026-22689: Mailpit is vulnerable to Cross-Site WebSocket Hijacking (CSWSH) allowing unauthenticated access to emails](https://junglewise.ai/threats/cve-2026-22689-mailpit-is-vulnerable-to-cross-site-websocket-hijacking-cswsh) (low, CVSS 3.1, published 23 Jan 2026)
- [CVE-2026-21859: GO-2026-4284 - Mailpit Proxy Endpoint has Server-Side Request Forgery (SSRF) vulnerability in github.com/axllent/mailpit](https://junglewise.ai/threats/cve-2026-21859-mailpit-proxy-endpoint-has-server-side-request-forgery-ssrf) (low, CVSS 3.1, published 12 Jan 2026)

## Most severe github.com/axllent/mailpit (Go) vulnerabilities

- [CVE-2026-45713: axllent Mailpit denial of service via unbounded message size](https://junglewise.ai/threats/cve-2026-45713-axllent-mailpit-denial-of-service-via-unbounded-message-size) (high, CVSS 7.5, published 20 Jul 2026)
- [CVE-2026-67446: Mailpit thumbnail generation unbounded image dimension decode](https://junglewise.ai/threats/cve-2026-67446-mailpit-thumbnail-generation-unbounded-image-dimension-decode) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-67445: Mailpit SMTP command parser unbounded buffering denial of service](https://junglewise.ai/threats/cve-2026-67445-mailpit-smtp-command-parser-unbounded-buffering-denial-of-service) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-67448: Axllent Mailpit WebSocket origin check bypass via percent-encoded path](https://junglewise.ai/threats/cve-2026-67448-axllent-mailpit-websocket-origin-check-bypass-via-percent-encoded) (medium, CVSS 6.5, published 20 Aug 2026)
- [CVE-2026-45711: axllent Mailpit path traversal in mailpit dump command](https://junglewise.ai/threats/cve-2026-45711-axllent-mailpit-path-traversal-in-mailpit-dump-command) (medium, CVSS 5.9, published 20 Jul 2026)
- [CVE-2026-45712: axllent Mailpit denial of service via race condition in proxy handler](https://junglewise.ai/threats/cve-2026-45712-axllent-mailpit-denial-of-service-via-race-condition-in-proxy) (medium, CVSS 5.9, published 20 Jul 2026)
- [CVE-2026-55187: axllent Mailpit SSRF bypass in Link Check API via IPv6 transition forms](https://junglewise.ai/threats/cve-2026-55187-axllent-mailpit-ssrf-bypass-in-link-check-api-via-ipv6-transition) (medium, CVSS 5.8, published 10 Jul 2026)
- [CVE-2026-45709: Axllent Mailpit SSRF in HTML Check API](https://junglewise.ai/threats/cve-2026-45709-axllent-mailpit-ssrf-in-html-check-api) (medium, CVSS 5.8, published 20 Jul 2026)
- [CVE-2026-48824: axllent Mailpit memory exhaustion DoS in multiple API endpoints](https://junglewise.ai/threats/cve-2026-48824-axllent-mailpit-memory-exhaustion-dos-in-multiple-api-endpoints) (medium, CVSS 5.3, published 20 Jul 2026)
- [CVE-2026-67447: Mailpit SMTP DATA reader unbounded line buffering denial of service](https://junglewise.ai/threats/cve-2026-67447-mailpit-smtp-data-reader-unbounded-line-buffering-denial-of) (medium, CVSS 5.3, published 20 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 4 | 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 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

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- [github.com/traefik/traefik/v2 (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2): 78 vulnerabilities
- [github.com/traefik/traefik (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik): 75 vulnerabilities
- [github.com/usememos/memos (Go)](https://junglewise.ai/threats/technologies/github-com-usememos-memos): 75 vulnerabilities

## 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, "github.com/axllent/mailpit (Go) vulnerabilities", https://junglewise.ai/threats/technologies/github-com-axllent-mailpit, 13 November 2026.