Common Weakness Enumeration
CWE-863
Allowed-with-ReviewIncorrect Authorization
Abstraction: Class · Status: Incomplete
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
2945 vulnerabilities reference this CWE, most recent first.
CVE-2026-104054 (GCVE-0-2026-104054)
Vulnerability from cvelistv5 – Published: 2026-10-02 02:00 – Updated: 2026-10-02 19:52
VLAI
EPSS
VEX
Title
calcom cal.diy PBAC Permission BookingAccessService.ts doesUserIdHaveAccessToBooking authorization
Summary
A security flaw has been discovered in calcom cal.diy up to 6.2.0. This affects the function doesUserIdHaveAccessToBooking of the file BookingAccessService.ts of the component PBAC Permission Engine. Performing a manipulation results in missing authorization. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 19:52 UTC
Assigner
VulDB
CNA
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/412762 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/412762/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-104054 | third-party-advisory |
| https://vuldb.com/submit/959492 | third-party-advisory |
| https://github.com/calcom/cal.diy/issues/29802 | exploitissue-tracking |
| https://github.com/calcom/cal.diy/pull/30253 | issue-trackingpatch |
| https://github.com/calcom/cal.diy/ | product |
Impacted products
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CVE-2026-104005 (GCVE-0-2026-104005)
Vulnerability from cvelistv5 – Published: 2026-10-13 15:38 – Updated: 2026-10-15 19:14
VLAI
EPSS
VEX
Title
Incorrect authorization in MongoDB Server router for bulk writes to system namespaces
Summary
A security issue was discovered in MongoDB mongos (the sharded cluster router) where an authenticated user with readWrite privileges could crash the mongos process by crafting a specially formed aggregation pipeline. The issue leverages an internal aggregation stage that lacks proper authorization checks despite being intended for internal use, allowing a subsequent stage to be forced to execute on the router under conditions it was not designed to handle. This results in an unhandled fatal error that causes the mongos process to immediately abort, resulting in denial of service for all clients routed through the affected mongos instance.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 17:58 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
mongodb
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | MongoDB Server |
Affected:
8.3.0 , < 8.3.13
(semver)
Affected: 9.0 , < 9.0.4 (semver) |
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CVE-2026-103903 (GCVE-0-2026-103903)
Vulnerability from cvelistv5 – Published: 2026-10-12 10:37 – Updated: 2026-10-13 11:57
VLAI
EPSS
VEX
Title
MikroTik RouterOS WinBox split-principal authentication bypass allows privilege escalation
Summary
An incorrect authorization vulnerability in the WinBox
authentication flow of MikroTik RouterOS allows a remote authenticated attacker
with credentials for a low-privilege account permitted to use WinBox to obtain
the authorization policy of a different existing account. The stage-one EC-SRP
challenge and proof are verified using the attacker's account, while the
independently supplied stage-two username is used to install the target
account's privileges. By specifying a higher-privilege account such as admin, a
low-privilege user can obtain a full administrative session without knowing the
target account's password and can use that session to increase the privileges
of the attacker's own account.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 03:55 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
ENISA
CNA
References
4 references
| URL | Tags |
|---|---|
| https://mikrotik.com/download/changelogs?channelF… | release-notes |
| https://forum.mikrotik.com/t/7-25rc1-testing-is-r… | release-notes |
| https://br2sec.com/lv/resursi/2026-routeros-winbo… | technical-descriptionthird-party-advisory |
| https://cvd.cert.lv/disclosed/vuln-all-709639748 | government-resource |
Impacted products
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CVE-2026-103758 (GCVE-0-2026-103758)
Vulnerability from cvelistv5 – Published: 2026-10-01 10:42 – Updated: 2026-10-01 14:35
VLAI
EPSS
VEX
Title
Obot 0.21.1 through 0.24.1 Authorization Bypass via /mcp-connect-composite/ Route
Summary
Obot 0.21.1 through 0.24.1 contains an authorization bypass vulnerability that allows authenticated users to reach MCP servers because the checkUI deny list omits the /mcp-connect-composite/ route. Basic-role users with a composite MCP ID can proxy requests through mcpGateway.Proxy to invoke tools on MCP servers restricted by Access Control Rules.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:34 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/obot-platform/obot/security/ad… | vendor-advisory |
| https://www.vulncheck.com/advisories/obot-0.21.1-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| obot-platform | obot |
Affected:
0.21.1 , ≤ 0.24.1
(semver)
|
Date Public
2026-09-17 00:00
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CVE-2026-103549 (GCVE-0-2026-103549)
Vulnerability from cvelistv5 – Published: 2026-10-13 01:05 – Updated: 2026-10-14 19:03
VLAI
EPSS
VEX
Title
Incorrect Authorization in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user with maintainer-role permissions to remove certain package registry metadata that package protection rules restrict to higher roles, due to improper authorization checks.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 19:03 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
GitLab
CNA
References
Impacted products
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CVE-2026-103547 (GCVE-0-2026-103547)
Vulnerability from cvelistv5 – Published: 2026-09-30 19:40 – Updated: 2026-09-30 19:55
VLAI
EPSS
VEX
Summary
In ldapd in OpenBSD 7.8 before errata 057 and 7.9 before errata 021, delegated BSD authentication results are correlated only by the LDAP child process client file descriptor and LDAP message ID. After a connection closes, a later connection that reuses the same file descriptor and message ID can receive the earlier authentication result. A remote attacker who can reach ldapd can complete a Bind as another identity. A missing connection can also cause a NULL pointer dereference. (ldapd is not enabled by default.)
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 19:55 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
mitre
CNA
References
Impacted products
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CVE-2026-103515 (GCVE-0-2026-103515)
Vulnerability from cvelistv5 – Published: 2026-10-21 23:34 – Updated: 2026-10-30 17:18
VLAI
EPSS
VEX
Title
Incorrect Authorization in GitLab
Summary
GitLab has remediated an issue in GitLab EE affecting all versions from 19.2 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when an instance administrator locked a group's Duo availability, an authenticated user with group Owner permissions could have re-enabled AI-backed data egress to a third-party service for that group and its descendant projects, due to insufficient granularity of the admin-lock enforcement controls.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 16:39 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
GitLab
CNA
References
3 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/work_items… | |
| https://hackerone.com/reports/3871692 | technical-descriptionexploitpermissions-required |
| https://docs.gitlab.com/releases/patches/patch-re… |
Impacted products
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CVE-2026-103396 (GCVE-0-2026-103396)
Vulnerability from cvelistv5 – Published: 2026-09-30 14:48 – Updated: 2026-09-30 16:57
VLAI
EPSS
VEX
Title
bbs-go through 4.4.6 Incorrect Authorization via /api/admin/user/synccount
Summary
bbs-go through 4.4.6 contains a permission bypass vulnerability in the AdminMiddleware authorization logic where the read-only dashboard.user.view permission rule matches the /api/admin/user/synccount endpoint before the intended dashboard.user.update rule. Authenticated users with only view permissions can call the synccount endpoint to trigger expensive full-table user recounts and cache invalidations, causing denial of service through repeated concurrent database operations.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 16:57 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/mlogclub/bbs-go/issues/303 | issue-tracking |
| https://github.com/mlogclub/bbs-go/commit/97d0bb3… | patch |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go/blob/v4.4.6/in… | technical-description |
| https://github.com/mlogclub/bbs-go | product |
| https://www.vulncheck.com/advisories/bbs-go-throu… | third-party-advisory |
Impacted products
Date Public
2026-09-17 00:00
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CVE-2026-103284 (GCVE-0-2026-103284)
Vulnerability from cvelistv5 – Published: 2026-10-01 10:42 – Updated: 2026-10-01 13:31
VLAI
EPSS
VEX
Title
Ghost 5.125.1 before 6.57.1 Information Disclosure via Feedback
Summary
Ghost versions from 5.125.1 before 6.57.1 contain an information disclosure vulnerability in the Admin Feedback endpoint that allows unauthorized staff users to access member data. Attackers with staff privileges can query the feedback endpoint to retrieve sensitive member information without proper authorization checks.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:30 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/TryGhost/Ghost/security/adviso… | vendor-advisory |
| https://www.vulncheck.com/advisories/ghost-5.125.… | third-party-advisory |
Impacted products
Date Public
2026-08-13 00:00
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CVE-2026-103273 (GCVE-0-2026-103273)
Vulnerability from cvelistv5 – Published: 2026-10-01 10:42 – Updated: 2026-10-01 13:33
VLAI
EPSS
VEX
Title
Ghost 4.3.0 before 6.58.0 Incorrect Authorization via Staff Token
Summary
Ghost versions 4.3.0 before 6.58.0 contain an authentication bypass vulnerability where lower-privilege staff users can use staff tokens to bypass post editing restrictions. Attackers with staff credentials can leverage tokens to edit posts beyond their assigned privilege level.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:33 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/TryGhost/Ghost/security/adviso… | vendor-advisory |
| https://www.vulncheck.com/advisories/ghost-4.3.0-… | third-party-advisory |
Impacted products
Date Public
2026-08-20 00:00
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Mitigation
Architecture and Design
- Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
- Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
Mitigation MIT-4.4
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
- For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
- One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration
Installation
Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
No CAPEC attack patterns related to this CWE.