CVE-2026-34752

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-34752
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34752.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34752
Aliases
Published
2026-04-02T18:42:38Z
Modified
2026-10-28T02:30:41Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Haraka affected by DoS via `__proto__` email header
Details

Haraka is a Node.js mail server. Prior to version 3.1.4, sending an email with proto: as a header name crashes the Haraka worker process. This issue has been patched in version 3.1.4.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-248"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34752.json"
}
References

Affected packages

Git / github.com/haraka/haraka

Affected ranges

Type
GIT
Repo
https://github.com/haraka/haraka
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a9c0fd522caa27f0ec704da29ab328b41f4dac0f
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "3.1.4"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "original_tag": "v3.1.4",
            "range": [
                {
                    "fixed": "a9c0fd522caa27f0ec704da29ab328b41f4dac0f"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "cpe": "cpe:2.3:a:haraka_project:haraka:*:*:*:*:*:node.js:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "3.1.4"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

2.*
2.8.10
2.8.11
2.8.12
2.8.13
2.8.15
2.8.16
2.8.17
2.8.18
2.8.20
2.8.22
2.8.24
2.8.25
2.8.26
2.8.27
2.8.28
3.*
3.0.0
3.0.4
release-2.*
release-2.8.21
v0.*
v0.2
v0.3
v0.4
v0.5
v0.5.10
v0.5.11
v0.5.2
v0.5.3
v0.5.5
v0.5.6
v0.5.7
v0.6.0
v1.*
v1.2.0
v1.3.1
v1.3.2
v1.3.3
v1.4.0
v2.*
v2.0.0
v2.0.3
v2.0.4
v2.0.5
v2.1.0
v2.1.1
v2.1.3
v2.1.6
v2.2.0
v2.2.5
v2.2.6
v2.3.0
v2.3.1
v2.4.0
v2.5.0
v2.6.0
v2.6.1
v2.7.0
v2.7.1
v2.7.2
v2.7.3
v2.8.0
v2.8.14
v2.8.19
v2.8.4
v2.8.5
v2.8.6
v2.8.7
v2.8.8
v2.8.9
v3.*
v3.0.1
v3.0.2
v3.0.3
v3.0.5
v3.1.0
v3.1.1
v3.1.2
v3.1.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34752.json"