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.
2946 vulnerabilities reference this CWE, most recent first.
CVE-2026-82431 (GCVE-0-2026-82431)
Vulnerability from cvelistv5 – Published: 2026-09-14 14:14 – Updated: 2026-09-14 20:01
VLAI
EPSS
VEX
Title
Apache Storm Client: Authorization Bypass When nimbus.groups Is Configured Without nimbus.users
Summary
Description
`SimpleACLAuthorizer` evaluated the user-level command set by returning early when `nimbus.users` was empty,
before `nimbus.groups` was considered. An operator who restricted cluster access by group alone, leaving
`nimbus.users` unset, therefore received no restriction at all: every authenticated principal was permitted
every user-level operation, including `submitTopology`, `beginFileUpload` and `getNimbusConf`.
`docs/SECURITY.md` presents `nimbus.groups` as a supported way to lock down a cluster, so a deployment
following the documentation could believe it was restricted while it was not. The failure is silent; nothing
in the logs or the configuration indicates that the group list is being ignored.
Both lists left empty continues to mean that no restriction is configured, which is the shipped default and
is unchanged.
Mitigation
Upgrade to 3.1.0, where `nimbus.groups` is evaluated whether or not `nimbus.users` is set.
Users who cannot upgrade immediately should additionally populate `nimbus.users` with the intended
principals, since a non-empty user list causes the group list to be evaluated on affected versions.
Operators should review Nimbus access logs for operations by principals outside the intended groups.
Note that after upgrading, a cluster configured with `nimbus.groups` alone becomes restrictive for the first
time. This includes `NimbusClient`, which calls `getLeader` on every connection, so clients outside the
configured groups will begin to be refused.
Credit
The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 20:01 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
apache
CNA
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/s335qxb6woqb35ho3… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Storm Client |
Affected:
3.0.0 , < 3.1.0
(semver)
|
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CVE-2026-82405 (GCVE-0-2026-82405)
Vulnerability from cvelistv5 – Published: 2026-09-23 19:26 – Updated: 2026-09-24 15:05
VLAI
EPSS
VEX
Title
Klever-Go Account takeover: `kleverUpdateAccountPermission` authorizes on attacker-controlled `RecipientAddr` instead of the authenticated caller
Summary
Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the KleverUpdateAccountPermission built-in authorizes replacement of a target account's permissions by checking attacker-controlled vmInput.RecipientAddr instead of authenticated vmInput.CallerAddr. An attacker-controlled contract can choose a victim account with configured permissions as RecipientAddr, and contractHasValidPermission can accept the victim's default self-signer as authorization. UpdatePermission can then replace the victim's entire permission set with attacker-supplied Owner permissions, enabling asset theft or permanent lockout without a victim key or signature. Accounts without stored permissions and the native transaction path are not affected. This issue is fixed in version 1.7.20.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 14:03 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/klever-io/klever-go/security/a… | x_refsource_CONFIRM |
| https://github.com/klever-io/klever-go/commit/c58… | x_refsource_MISC |
| https://gist.github.com/mabdullah22/a41f90aa5ba86… | x_refsource_MISC |
| https://github.com/klever-io/klever-go/releases/t… | x_refsource_MISC |
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CVE-2026-82395 (GCVE-0-2026-82395)
Vulnerability from cvelistv5 – Published: 2026-08-31 21:20 – Updated: 2026-09-01 13:22
VLAI
EPSS
VEX
Title
Sulu: Media move/update authorization bypass (IDOR)
Summary
Sulu is an open-source PHP content management system based on the Symfony framework. Prior to versions 2.6.25 and 3.0.8, the media move endpoint derives its permission check from the client-supplied collection value instead of the media item's actual source collection, and src/Sulu/Bundle/MediaBundle/Media/Manager/MediaManager.php allows MediaManager::move() to reassign the item without checking that source. An authenticated backend user with edit permission on one collection and knowledge of a target media identifier can name the allowed collection in the request, move an item out of a restricted collection, and then view or download content the user was not permitted to access. This issue is fixed in versions 2.6.25 and 3.0.8.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 13:22 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/sulu/sulu/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/sulu/sulu/commit/2b959de75d61b… | x_refsource_MISC |
| https://github.com/sulu/sulu/releases/tag/2.6.25 | x_refsource_MISC |
| https://github.com/sulu/sulu/releases/tag/3.0.8 | x_refsource_MISC |
Impacted products
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CVE-2026-82394 (GCVE-0-2026-82394)
Vulnerability from cvelistv5 – Published: 2026-08-31 21:17 – Updated: 2026-09-02 17:38
VLAI
EPSS
VEX
Title
Sulu: Fix authorization bypass when creating preview links
Summary
Sulu is an open-source PHP content management system based on the Symfony framework. Prior to versions 2.6.25 and 3.0.8, the preview-link endpoint and src/Sulu/Bundle/PreviewBundle/Application/Manager/PreviewLinkManager.php do not enforce VIEW permission for the target resource in PreviewLinkManager::generate() or PreviewLinkManager::revoke(). An authenticated administration user who knows a target resource identifier can create or revoke a preview link for any page, article, or snippet, including content in a webspace or area the user cannot view. A generated preview URL is public and resolves content by an opaque token, allowing the user or anyone receiving the link to read restricted content without authentication. This issue is fixed in versions 2.6.25 and 3.0.8.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:37 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
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| https://github.com/sulu/sulu/releases/tag/3.0.8 | x_refsource_MISC |
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CVE-2026-82378 (GCVE-0-2026-82378)
Vulnerability from cvelistv5 – Published: 2026-09-28 07:45 – Updated: 2026-09-29 15:39
VLAI
EPSS
VEX
Title
Apache Roller: OAuth authorization endpoint trusts request-supplied identity
Summary
Incorrect Authorization in the OAuth 1.0a authorization endpoint of Apache Roller 6.1.5 allows an unauthenticated remote attacker who learns an outstanding request token for a configured site-wide consumer to bind that token to an arbitrary user account, including an administrator, by submitting an unsigned authorization request. The endpoint derives the authorizing identity from a request-supplied value rather than the authenticated session. Only installations that configure an OAuth 1.0a site-wide consumer are affected, and exploitation requires knowledge of one of its outstanding request tokens. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which binds authorization to the logged-in session.
Severity
9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 03:55 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
apache
CNA
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Roller |
Affected:
6.1.5
(semver)
|
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CVE-2026-82358 (GCVE-0-2026-82358)
Vulnerability from cvelistv5 – Published: 2026-10-01 19:42 – Updated: 2026-10-07 15:52
VLAI
EPSS
VEX
Title
RT-Labs AB C-Open CANopen SDO Server Write Protection Bypass
Summary
RT-Labs AB C-Open CANopen contains a write protection bypass in the SDO (Service Data Object) server implementation 'src/co_sdo_server.c' that fails to properly validate write permissions when processing download-segment frames. An unauthenticated attacker on the CAN bus can initiate an SDO upload for a read-only Object Dictionary (OD) entry, which sets a data pointer to the read-only object, then send download-segment frames to write to that memory location. The download-segment handler does not verify that a download session is active, allowing any CANopen node to overwrite read-only OD entries using two SDO frames. Note that CANopen protocol operates over CAN bus and does not provide built-in authentication mechanisms. Fixed in 1.1.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · cisa-cg (v2.0.3)
Decision recorded 2026-08-28 18:03 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
cisa-cg
CNA
References
4 references
| URL | Tags |
|---|---|
| https://rt-labs.com/wp-content/uploads/2026/09/RR… | vendor-advisory |
| https://github.com/rtlabs-com/c-open/releases/tag… | release-notes |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
| https://www.cve.org/CVERecord?id=CVE-2026-82358 | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RT-Labs AB | C-Open |
Affected:
0 , < 1.1.1
(custom)
Unaffected: 1.1.1 |
Date Public
2026-09-21 00:00
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CVE-2026-82302 (GCVE-0-2026-82302)
Vulnerability from cvelistv5 – Published: 2026-09-03 18:35 – Updated: 2026-09-03 18:46
VLAI
EPSS
VEX
Title
Incorrect Authorization in Kibana Leading to Unauthorized Configuration Modification
Summary
Incorrect Authorization (CWE-863) in Kibana can lead to unauthorized configuration modification via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180).
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 18:46 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
elastic
CNA
References
1 reference
Impacted products
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CVE-2026-82299 (GCVE-0-2026-82299)
Vulnerability from cvelistv5 – Published: 2026-09-03 18:35 – Updated: 2026-09-03 18:47
VLAI
EPSS
VEX
Title
Incorrect Authorization in Kibana Leading to Information Disclosure
Summary
Incorrect Authorization (CWE-863) in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 18:46 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
elastic
CNA
References
1 reference
Impacted products
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CVE-2026-82298 (GCVE-0-2026-82298)
Vulnerability from cvelistv5 – Published: 2026-09-03 18:35 – Updated: 2026-09-03 18:47
VLAI
EPSS
VEX
Title
Incorrect Authorization in Kibana Leading to Denial of Service
Summary
Incorrect Authorization (CWE-863) in Kibana can lead to denial of service via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180).
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 18:47 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
elastic
CNA
References
1 reference
Impacted products
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CVE-2026-82293 (GCVE-0-2026-82293)
Vulnerability from cvelistv5 – Published: 2026-09-02 14:43 – Updated: 2026-09-02 15:58
VLAI
EPSS
VEX
Title
Incorrect Authorization in Kibana Leading to Unauthorized Resource Consumption
Summary
Incorrect Authorization (CWE-863) in the Kibana machine learning feature can lead to unauthorized resource consumption via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user could invoke machine learning functionality beyond their authorization scope, consuming cluster resources they should not be able to reach.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 15:47 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
elastic
CNA
References
1 reference
Impacted products
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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.