Common Weakness Enumeration
CWE-639
AllowedAuthorization Bypass Through User-Controlled Key
Abstraction: Base · Status: Incomplete
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
4802 vulnerabilities reference this CWE, most recent first.
CVE-2026-86720 (GCVE-0-2026-86720)
Vulnerability from cvelistv5 – Published: 2026-09-08 15:13 – Updated: 2026-09-08 15:34
VLAI
EPSS
VEX
Title
WWBN AVideo Missing Authorization via resendRestreamer.json.php
Summary
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ownership of live_restreams_id in resendRestreamer.json.php, allowing authenticated users with canStream to access other users' restream destinations. Attackers can broadcast their live stream to victim-configured restream destinations by supplying arbitrary live_restreams_id values, hijacking YouTube, Facebook, or Twitch streams using victim stream keys.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:34 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/WWBN/AVideo/security/advisorie… | vendor-advisory |
| https://www.vulncheck.com/advisories/wwbn-avideo-… | third-party-advisory |
Impacted products
Date Public
2026-08-24 00:00
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CVE-2026-86678 (GCVE-0-2026-86678)
Vulnerability from cvelistv5 – Published: 2026-09-23 13:41 – Updated: 2026-09-24 03:55
VLAI
EPSS
VEX
Title
Broken Authentication vulnerability
Summary
ZohoCorp ManageEngine Applications Manager versions 182000 and below allowed a low-privileged user to obtain an administrator’s API key and use it to perform administrator-level actions.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 00:00 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zohocorp | ManageEngine Applications Manager |
Affected:
0 , < 182100
(custom)
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CVE-2026-86465 (GCVE-0-2026-86465)
Vulnerability from cvelistv5 – Published: 2026-09-16 08:58 – Updated: 2026-09-17 19:31
VLAI
EPSS
VEX
Title
Apache Airflow Akeyless provider: Akeyless secrets backend: team-scope guard bypass via user-controlled key
Summary
Apache Airflow Akeyless provider: the Akeyless secrets backend's team-scope guard can be bypassed with a user-controlled key. In a multi-team deployment, a Dag author scoped to one team can supply a Variable key containing a path separator that causes the backend to resolve a secret belonging to a different team, because the lookup path is concatenated from an unvalidated key after the team-scoped lookup misses. The Execution API Variables route accepts a path-shaped key, so this is reachable from ordinary Dag code.
Affects multi-team deployments using the Akeyless secrets backend. Single-team deployments are not affected, as there is no cross-team boundary to cross. This is the same class as CVE-2026-68870, CVE-2026-68871 and CVE-2026-68872 in the Azure Key Vault, Yandex Lockbox and Amazon secrets backends.
Users of apache-airflow-providers-akeyless are recommended to upgrade to version 0.3.1 or later, which fixes the issue.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 19:28 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/apache/airflow/pull/72646 | patch |
| https://lists.apache.org/thread/vczt5xgqjv8ot8fpp… | vendor-advisory |
| https://www.cve.org/CVERecord?id=CVE-2026-68870 | related |
| https://www.cve.org/CVERecord?id=CVE-2026-68871 | related |
| https://www.cve.org/CVERecord?id=CVE-2026-68872 | related |
| https://lists.apache.org/thread/vczt5xgqjv8ot8fpp… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Airflow Akeyless provider |
Affected:
0 , < 0.3.1
(semver)
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CVE-2026-86451 (GCVE-0-2026-86451)
Vulnerability from cvelistv5 – Published: 2026-09-07 12:59 – Updated: 2026-09-08 14:52
VLAI
EPSS
VEX
Title
MISP Event Graph Object Reference Lookup Exposes References from Unauthorized Objects
Summary
Affected versions of MISP allow authenticated users to retrieve object-reference records by UUID through EventGraphTool::get_reference_data() without first checking whether the requester is authorized to view the object the reference belongs to.
The vulnerable code queried ObjectReference.uuid directly and returned the matching row whenever it existed. Because no parent-object ACL was applied, a user who knew or obtained a reference UUID could retrieve information associated with an object outside their normal access scope. The commit explicitly states that any object reference could be returned by UUID without authorizing its parent object.
The fix retrieves the referenced object's object_id and calls fetchObjectSimple() with the current user. If the user cannot access that parent object, MISP now returns NotFoundException instead of exposing the reference.
Version affected: ≤2.5.45
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 14:52 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/c0cb5c9f8 | patch |
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CVE-2026-86408 (GCVE-0-2026-86408)
Vulnerability from cvelistv5 – Published: 2026-09-07 12:11 – Updated: 2026-09-08 14:49
VLAI
EPSS
VEX
Title
MISP Missing Authorization in Cryptographic Key View Exposes Signing Keys from Protected Events
Summary
Affected versions of MISP do not enforce parent-event visibility when serving cryptographic keys through CryptographicKeysController::view().
The vulnerable handler queried CryptographicKey directly using the supplied key ID and selected sensitive fields such as:
*
type
*
key_data
*
fingerprint
but did not fetch or authorize the associated parent event first.
The upstream commit explicitly states that cryptographicKeys/view could return a protected event’s signing key to any authenticated user.
The fix adds parent_id and parent_type to the lookup and then enforces authorization through the associated event using fetchSimpleEvent($user, parent_id). If the parent is not an Event, access is limited to site administrators.
Version affected: ≤2.5.45
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 14:49 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/2edde619b | patch |
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CVE-2026-86277 (GCVE-0-2026-86277)
Vulnerability from cvelistv5 – Published: 2026-09-07 06:00 – Updated: 2026-09-08 15:56 X_Freeware
VLAI
EPSS
VEX
Title
SourceCodester Syllabus-Aligned Learning Management & Examination System delete_exam.php authorization
Summary
A vulnerability has been found in SourceCodester Syllabus-Aligned Learning Management & Examination System 1.0. Impacted is an unknown function of the file delete_exam.php. The manipulation of the argument ID leads to authorization bypass. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:56 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/399438 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/399438/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-86277 | third-party-advisory |
| https://vuldb.com/submit/904877 | third-party-advisory |
| https://github.com/hackliu/Vulnerability-Reports/… | exploit |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Syllabus-Aligned Learning Management & Examination System |
Affected:
1.0
cpe:2.3:a:sourcecodester:syllabus-aligned_learning_management_examination_system:*:*:*:*:*:*:*:* |
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CVE-2026-86263 (GCVE-0-2026-86263)
Vulnerability from cvelistv5 – Published: 2026-09-07 02:45 – Updated: 2026-09-08 18:25
VLAI
EPSS
VEX
Title
sfturing hosp_order Order Cancellation OrderController.java orderRecordsService.cancelOrder authorization
Summary
A vulnerability was detected in sfturing hosp_order up to 627f426331da8086ce8fff2017d65b1ddef384f8. This impacts the function orderRecordsService.cancelOrder of the file ssm_pro/src/main/java/cn/sfturing/web/OrderController.java of the component Order Cancellation. The manipulation of the argument ID results in authorization bypass. The attack may be performed from remote. The exploit is now public and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:25 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/399409 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/399409/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-86263 | third-party-advisory |
| https://vuldb.com/submit/902242 | third-party-advisory |
| https://github.com/sfturing/hosp_order/issues/116 | exploitissue-tracking |
| https://github.com/sfturing/hosp_order/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sfturing | hosp_order |
Affected:
627f426331da8086ce8fff2017d65b1ddef384f8
cpe:2.3:a:sfturing:hosp_order:*:*:*:*:*:*:*:* |
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CVE-2026-86262 (GCVE-0-2026-86262)
Vulnerability from cvelistv5 – Published: 2026-09-07 02:30 – Updated: 2026-09-11 20:35
VLAI
EPSS
VEX
Title
sfturing hosp_order Order OrderController.java updateOrderdiseaseInfo authorization
Summary
A security vulnerability has been detected in sfturing hosp_order up to 627f426331da8086ce8fff2017d65b1ddef384f8. This affects the function updateOrderSta1/updateOrderdiseaseInfo of the file ssm_pro/src/main/java/cn/sfturing/web/OrderController.java of the component Order Handler. The manipulation of the argument userID/id leads to authorization bypass. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 20:03 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/399408 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/399408/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-86262 | third-party-advisory |
| https://vuldb.com/submit/902241 | third-party-advisory |
| https://github.com/sfturing/hosp_order/issues/115 | exploitissue-tracking |
| https://github.com/sfturing/hosp_order/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sfturing | hosp_order |
Affected:
627f426331da8086ce8fff2017d65b1ddef384f8
cpe:2.3:a:sfturing:hosp_order:*:*:*:*:*:*:*:* |
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CVE-2026-86261 (GCVE-0-2026-86261)
Vulnerability from cvelistv5 – Published: 2026-09-07 02:15 – Updated: 2026-09-08 13:56
VLAI
EPSS
VEX
Title
sfturing hosp_order Order Controller OrderController.java authorization
Summary
A weakness has been identified in sfturing hosp_order up to 627f426331da8086ce8fff2017d65b1ddef384f8. The impacted element is an unknown function of the file ssm_pro/src/main/java/cn/sfturing/web/OrderController.java of the component Order Controller. Executing a manipulation of the argument userIdenf can lead to authorization bypass. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 13:56 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/399407 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/399407/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-86261 | third-party-advisory |
| https://vuldb.com/submit/902240 | third-party-advisory |
| https://github.com/sfturing/hosp_order/issues/114 | exploitissue-tracking |
| https://github.com/sfturing/hosp_order/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sfturing | hosp_order |
Affected:
627f426331da8086ce8fff2017d65b1ddef384f8
cpe:2.3:a:sfturing:hosp_order:*:*:*:*:*:*:*:* |
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CVE-2026-86192 (GCVE-0-2026-86192)
Vulnerability from cvelistv5 – Published: 2026-09-05 12:09 – Updated: 2026-09-10 15:05
VLAI
EPSS
VEX
Title
SiYuan before v3.8.2 Information Disclosure via Attribute-View
Summary
SiYuan versions before v3.8.2 fail to properly filter private attribute-view cell values in the getAttributeViewKeys endpoint. Publish readers can retrieve hidden KeyValues payloads from rows bound to inaccessible documents, exposing private database contents without authorization.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:19 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/siyuan-note/siyuan/security/ad… | vendor-advisory |
| https://www.vulncheck.com/advisories/siyuan-befor… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| siyuan-note | siyuan |
Affected:
0 , < 3.8.2
(semver)
Unaffected: 3.8.2 (semver) cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* |
Date Public
2026-08-21 00:00
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"value": "SiYuan versions before v3.8.2 fail to properly filter private attribute-view cell values in the getAttributeViewKeys endpoint. Publish readers can retrieve hidden KeyValues payloads from rows bound to inaccessible documents, exposing private database contents without authorization."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
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{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T12:09:06.781Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
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"references": [
{
"name": "GitHub Security Advisory (GHSA-vc7j-5f5p-3x75)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vc7j-5f5p-3x75"
},
{
"name": "VulnCheck Advisory: SiYuan before v3.8.2 Information Disclosure via Attribute-View",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/siyuan-before-3.8.2-information-disclosure-via-attribute-view"
}
],
"title": "SiYuan before v3.8.2 Information Disclosure via Attribute-View",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-86192",
"datePublished": "2026-09-05T12:09:06.781Z",
"dateReserved": "2026-09-05T11:51:31.102Z",
"dateUpdated": "2026-09-10T15:05:08.857Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation
Architecture and Design
Implementation
Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Mitigation
Architecture and Design
Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
No CAPEC attack patterns related to this CWE.