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CVE-2026-27808

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 (SSRF). The server performs HTTP HEAD requests to every URL found in an email without validating target hosts or filtering private/internal IP addresses. The response returns status codes and status text per link, making this a non-blind SSRF. In the default configuration (no authentication on SMTP or API), this is ful
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:78ea71f1c5d8f9cdd52a577415721f7a2eb80ff5fb91f74a6d9e8a93ffe0bbdc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"mailpit","vendor":"axllent","versions":[{"status":"affected","version":"< 1.29.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0ccc2f7add0c5014bc8022a7816b6c3a499f781367a03042c2da66fbccf757a0 · sha256:8de4b5fec919eab3… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0ccc2f7add0c5014bc8022a7816b6c3a499f781367a03042c2da66fbccf757a0 · sha256:8de4b5fec919eab3… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0ccc2f7add0c5014bc8022a7816b6c3a499f781367a03042c2da66fbccf757a0 · sha256:8de4b5fec919eab3… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/axllent/mailpit/commit/10ad4df8cc0cd9e51dea1b4410009545eef7fbf5","tags":["x_refsource_MISC"],"url":"https://github.com/axllent/mailpit/commit/10ad4df8cc0cd9e51dea1b4410009545eef7fbf5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ccc2f7add0c5014bc8022a7816b6c3a499f781367a03042c2da66fbccf757a0 · sha256:8de4b5fec919eab3… · /containers/cna/references/1
{"name":"https://github.com/axllent/mailpit/releases/tag/v1.29.2","tags":["x_refsource_MISC"],"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ccc2f7add0c5014bc8022a7816b6c3a499f781367a03042c2da66fbccf757a0 · sha256:8de4b5fec919eab3… · /containers/cna/references/2
{"name":"https://github.com/axllent/mailpit/security/advisories/GHSA-mpf7-p9x7-96r3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/axllent/mailpit/security/advisories/GHSA-mpf7-p9x7-96r3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ccc2f7add0c5014bc8022a7816b6c3a499f781367a03042c2da66fbccf757a0 · sha256:8de4b5fec919eab3… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/axllent/mailpit/security/advisories/GHSA-mpf7-p9x7-96r3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ccc2f7add0c5014bc8022a7816b6c3a499f781367a03042c2da66fbccf757a0 · sha256:8de4b5fec919eab3… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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