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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-23845

26
FAUCET Score

CVE-2026-23845 is a Server-Side Request Forgery (SSRF) vulnerability affecting Mailpit versions prior to 1.28.3. This flaw allows an attacker to force the Mailpit server to make requests to arbitrary internal or external resources when processing HTML emails containing external CSS links. Rated as High severity with a CVSS score of 7.5, the vulnerability is easily exploitable over the network without user interaction, potentially leading to information disclosure. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.28.3CPE matchmatch criteria
cpe:2.3:a:axllent:mailpit:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.8MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 11th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/axllent/mailpitFixed in: 1.28.3

Vendor Advisories (1)

goGHSA-6jxm-fv7w-rw5jmedium

Mailpit has a Server-Side Request Forgery (SSRF) via HTML Check API

Jan 21, 2026

References

github.com / axllent/mailpit/commit/1679a0aba592ebc8487a996d37fea8318c984dfe
Patch
github.com / axllent/mailpit/releases/tag/v1.28.3
ProductRelease Notes
github.com / axllent/mailpit/security/advisories/GHSA-6jxm-fv7w-rw5j
ExploitVendor Advisory