CVE-2026-34834

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Source

https://cve.org/CVERecord?id=CVE-2026-34834

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34834.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-34834

Aliases

GHSA-4356-876g-rfmh

Published

2026-04-02T19:11:54.448Z

Modified

2026-07-15T01:49:17.981912348Z

Severity

8.7 (High) CVSS_V4 - 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 CVSS Calculator

Summary

Bulwark Webmail: Authentication Bypass in verifyIdentity() due to missing cookie validation

Details

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to version 1.4.10, the verifyIdentity() function contained logic that returned true if no session cookies were present. This allowed unauthenticated attackers to bypass security checks and access/modify user settings via the /api/settings endpoint by providing arbitrary headers. This issue has been patched in version 1.4.10.

Database specific

{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34834.json",
    "cwe_ids": [
        "CWE-287"
    ]
}

References

Affected packages

Git / github.com/bulwarkmail/webmail

Affected ranges

Type

GIT

Repo

https://github.com/bulwarkmail/webmail

Events

Introduced

Fixed

79b99ed4f86779fd048181676b567d99ec7db769

Database specific

{
    "cpe": "cpe:2.3:a:bulwarkmail:webmail:*:*:*:*:*:*:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.10"
        }
    ]
}

Affected versions

1.*

1.3.0

1.3.9

1.4.0

1.4.2

1.4.3

1.4.4

1.4.5

1.4.6

1.4.7

1.4.8

1.4.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34834.json"