CVE-2026-59998

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Source
https://cve.org/CVERecord?id=CVE-2026-59998
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-59998.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-59998
Downstream
Published
2026-07-08T00:11:05.183Z
Modified
2026-07-11T04:20:11.442772023Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

Database specific 
{
    "cna_assigner": "mitre",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "10.4"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "fixed": "10.4"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "fixed": "10.4"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59998.json",
    "cwe_ids": [
        "CWE-573"
    ]
}
References

Affected packages

Git / github.com/openssh/openssh-portable

Affected ranges

Type
GIT
Repo
https://github.com/openssh/openssh-portable
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e8dd756725e8800fcd0b3fd71ee6b4382d1e8fab
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "10.4"
        }
    ]
}

Affected versions

Other
ABOUT_TO_ADD_INET_ATON
AFTER_FREEBSD_PAM_MERGE
AFTER_KRB5_GSSAPI_MERGE
BEFORE_FREEBSD_PAM_MERGE
BEFORE_KRB5_GSSAPI_MERGE
POST_KRB4_REMOVAL
PRE-REORDER
PRE_CYGWIN_MERGE
PRE_DAN_PATCH_MERGE
PRE_FIXPATHS_INTEGRATION
PRE_HPUX_INTEGRATION
PRE_IPV6
PRE_KRB4_REMOVAL
PRE_NEW_LOGIN_CODE
PRE_SW_KRBV
V_1_2PRE17
V_1_2_1_PRE18
V_1_2_1_PRE19
V_1_2_1_PRE20
V_1_2_1_PRE21
V_1_2_1_PRE22
V_1_2_1_PRE23
V_1_2_1_PRE24
V_1_2_1_PRE25
V_1_2_1_PRE26
V_1_2_1_PRE27
V_1_2_2
V_1_2_2_P1
V_1_2_2_PRE28
V_1_2_2_PRE29
V_1_2_3
V_1_2_3_PRE1
V_1_2_3_PRE2
V_1_2_3_PRE3
V_1_2_3_PRE4
V_1_2_3_PRE5
V_1_2_3_TEST1
V_1_2_3_TEST2
V_1_2_3_TEST3
V_1_2_PRE10
V_1_2_PRE11
V_1_2_PRE12
V_1_2_PRE13
V_1_2_PRE14
V_1_2_PRE15
V_1_2_PRE16
V_1_2_PRE4
V_1_2_PRE5
V_1_2_PRE6
V_1_2_PRE7
V_1_2_PRE8
V_1_2_PRE9
V_2_0_0_BETA1
V_2_0_0_BETA2
V_2_0_0_TEST1
V_2_1_0
V_2_1_0_P1
V_2_1_0_P2
V_2_1_0_P3
V_2_1_1_P1
V_2_1_1_P2
V_2_1_1_P3
V_2_1_1_P4
V_2_2_0_P1
V_2_3_0_P1
V_2_5_0_P1
V_2_5_1_P1
V_2_5_1_P2
V_2_5_2_P1
V_3_0_1_P1
V_3_0_P1
V_3_1_P1
V_3_2_2_P1
V_3_4_P1
V_3_6_1_P1
V_3_8_P1
V_3_9_P1
V_4_2_P1
V_5_0_P1
V_5_1_P1
V_5_2_P1
V_5_5_P1
V_5_7_P1
V_6_0_P1
V_6_1_P1
V_6_2_P1
V_6_5_P1
V_6_6_P1
V_6_8_P1
V_6_9_P1
V_7_0_P1
V_7_1_P1
V_7_2_P1
V_7_3_P1
V_7_4_P1
V_7_5_P1
V_7_6_P1
V_7_7_P1
V_7_8_P1
V_7_9_P1
V_8_0_P1
V_8_1_P1
V_8_2_P1
V_8_4_P1
V_8_5_P1
V_8_6_P1
V_8_7_P1
V_8_8_P1
V_8_9_P1
V_9_0_P1
V_9_1_P1
V_9_2_P1
V_9_3_P1
V_9_5_P1
V_9_6_P1
V_9_7_P1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-59998.json"