CVE Explorer

CVE-2026-35389

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to 1.4.11, S/MIME signature verification did not validate the certificate trust chain (checkChain: false). Any email signed with a self-signed or untrusted certificate was displayed as having a valid signature. This vulnerability is fixed in 1.4.11.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:85465a303a28ce5506f26c6100a106f35d74d0f899c52728aac088d8f6f4b550

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"webmail","vendor":"bulwarkmail","versions":[{"status":"affected","version":"< 1.4.11"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:ab505b23889ad7ec19e66103804fce91e23462a03bedc24bec21172882a39aca · sha256:662c139082b11238… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:ab505b23889ad7ec19e66103804fce91e23462a03bedc24bec21172882a39aca · sha256:662c139082b11238… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-295","description":"CWE-295: Improper Certificate Validation","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:ab505b23889ad7ec19e66103804fce91e23462a03bedc24bec21172882a39aca · sha256:662c139082b11238… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/bulwarkmail/webmail/security/advisories/GHSA-v6w6-338p-p256","tags":["x_refsource_CONFIRM"],"url":"https://github.com/bulwarkmail/webmail/security/advisories/GHSA-v6w6-338p-p256"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:ab505b23889ad7ec19e66103804fce91e23462a03bedc24bec21172882a39aca · sha256:662c139082b11238… · /containers/cna/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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