Mailpit
Vendor:
First CVE: Jan 8, 2026 · Active for under a year
5
Total CVEs
More Total CVEs than 77% of tracked products
5.0
Avg CVEs / Year
Higher CVE frequency than 87% of tracked products
6.6
Avg CVSS
Higher Avg CVSS than 33% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Mailpit over time
Volume of CVEsAvg CVSS Base Score
First CVE
Jan 8, 2026
6 months ago
Most Recent CVE
Feb 26, 2026
150 days ago
CVE Severity & Scoring
Mailpit5 CVEs
60%
40%
All CVEs352,719 CVEs
45%
40%
11%
MediumHigh
Attack Vector
Local0 (0.0%)
Network5 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low5 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None4 (80.0%)
Unknown0 (0.0%)
Required1 (20.0%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None5 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (5 CVEs).
5 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-23829MEDIUM Mailpit is an email testing tool and API for developers. Prior to version 1.28.3, Mailpit's SMTP server is vulnerable to Header Injection due to an insufficient Regular Expression | Jan 19, 2026 | 5.3 | 34 | NO | YES |
CVE-2026-21859MEDIUM Mailpit is an email testing tool and API for developers. Versions 1.28.0 and below have a Server-Side Request Forgery (SSRF) vulnerability in the /proxy endpoint, allowing attacker | Jan 8, 2026 | 5.3 | 31 | NO | YES |
CVE-2026-27808HIGH Mailpit is an email testing tool and API for developers. Prior to version 1.29.2, the Link Check API (/api/v1/message/{ID}/link-check) is vulnerable to Server-Side Request Forgery | Feb 26, 2026 | 8.6 | 28 | NO | NO |
CVE-2026-23845HIGH Mailpit is an email testing tool and API for developers. Versions prior to 1.28.3 are vulnerable to Server-Side Request Forgery (SSRF) via HTML Check CSS Download. The HTML Check f | Jan 19, 2026 | 7.5 | 26 | NO | NO |
CVE-2026-22689MEDIUM Mailpit is an email testing tool and API for developers. Prior to version 1.28.2, the Mailpit WebSocket server is configured to accept connections from any origin. This lack of Ori | Jan 10, 2026 | 6.5 | 23 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (5 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
2 CVEs
40.0% of CVEs· 98th percentile
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (5 CVEs).
Media Mentions
Signals from CVEs in this product scope (5 CVEs).
Top CNAs Publishing CVEs For Mailpit
Top CWEs
Versions
No cataloged versions.