CVE-2026-84461

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Source

https://cve.org/CVERecord?id=CVE-2026-84461

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84461.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-84461

Aliases

GHSA-6vh5-pfp2-5rmh

Published

2026-09-25T18:21:20Z

Modified

2026-09-30T03:30:43Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Zammad: Missing rate limiting allows password brute-forcing during two-factor login

Details

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the two-factor login step let an attacker try unlimited password guesses for any account without triggering Zammad's normal lockout or rate limiting. The response also revealed whether a guess was correct, even before two-factor authentication was checked. This made it possible to brute-force weak or reused passwords. This issue is fixed in version 7.1.2.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-203",
        "CWE-307",
        "CWE-799"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84461.json"
}

References

Affected packages

Git / github.com/zammad/zammad

Affected ranges

Type

GIT

Repo

https://github.com/zammad/zammad

Events

Introduced

Fixed

d51254f1c6da13f6ee27636a5c82e53f7e59666b

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "7.1.2"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

1.*

1.6.0

3.*

3.7.0

5.*

5.2.0-alpha

5.3.0-alpha

5.4.0-alpha

5.5.0-alpha

6.*

6.0.0-alpha

6.1.0-alpha

6.2.0-alpha

6.3.0-alpha

6.4.0-alpha

6.5.0-alpha

6.6.0-alpha

7.*

7.0.0-alpha

7.1.0

7.1.0-alpha

7.1.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84461.json"