CVE-2026-4256 - Vulnerability Details - OpenCVE

Description

Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection.

This issue affects PassGate: through 30042026.

Published: 2026-07-09

Score: 8.2 High

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

PEAKUP Technology Inc.

PassGate

unaffected

Version	Status	Constraints
`0`	affected	≤ 30042026

No data.

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

References

Link	Providers
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0523

History

Thu, 09 Jul 2026 14:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 09 Jul 2026 13:30:00 +0000

Type	Values Removed	Values Added
Description		Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection. This issue affects PassGate: through 30042026.
Title		LDAP Injection in PEAKUP's PassGate
Weaknesses		CWE-90
References		https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0523
Metrics		cvssV3_1 `{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}`

Subscriptions

No data.

MITRE

Status: PUBLISHED

Assigner: TR-CERT

Published: 2026-07-09T13:15:55.283Z

Updated: 2026-07-09T13:42:03.407Z

Reserved: 2026-03-16T07:44:00.802Z

Link: CVE-2026-4256

Vulnrichment

Updated: 2026-07-09T13:41:59.891Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-90
Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4256", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2026-03-16T07:44:00.802Z", "datePublished": "2026-07-09T13:15:55.283Z", "dateUpdated": "2026-07-09T13:42:03.407Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-07-09T13:15:55.283Z"}, "title": "LDAP Injection in PEAKUP's PassGate", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-90", "description": "CWE-90 Improper neutralization of special elements used in an LDAP query ('LDAP injection')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-136", "descriptions": [{"lang": "en", "value": "CAPEC-136 LDAP Injection"}]}], "affected": [{"vendor": "PEAKUP Technology Inc.", "product": "PassGate", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "30042026", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection.\n\nThis issue affects PassGate: through 30042026.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection.<p>This issue affects PassGate: through 30042026.</p>"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0523", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 8.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"}}], "credits": [{"lang": "en", "value": "Eren Can \u00d6ZMEN", "type": "finder"}], "source": {"defect": ["TR-26-0523"], "advisory": "TR-26-0523", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-09T13:41:56.831228Z", "id": "CVE-2026-4256", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-09T13:42:03.407Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4256", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2026-03-16T07:44:00.802Z", "datePublished": "2026-07-09T13:15:55.283Z", "dateUpdated": "2026-07-09T13:42:03.407Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-07-09T13:15:55.283Z"}, "title": "LDAP Injection in PEAKUP's PassGate", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-90", "description": "CWE-90 Improper neutralization of special elements used in an LDAP query ('LDAP injection')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-136", "descriptions": [{"lang": "en", "value": "CAPEC-136 LDAP Injection"}]}], "affected": [{"vendor": "PEAKUP Technology Inc.", "product": "PassGate", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "30042026", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection.\n\nThis issue affects PassGate: through 30042026.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection.<p>This issue affects PassGate: through 30042026.</p>"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0523", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 8.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"}}], "credits": [{"lang": "en", "value": "Eren Can \u00d6ZMEN", "type": "finder"}], "source": {"defect": ["TR-26-0523"], "advisory": "TR-26-0523", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-4256", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-09T13:41:56.831228Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-09T13:41:59.891Z"}}]}}