Common Weakness Enumeration
CWE-862
Allowed-with-ReviewMissing Authorization
Abstraction: Class · Status: Incomplete
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
16578 vulnerabilities reference this CWE, most recent first.
CVE-2026-20483 (GCVE-0-2026-20483)
Vulnerability from cvelistv5 – Published: 2026-08-03 02:05 – Updated: 2026-08-05 03:56
VLAI
EPSS
VEX
Summary
In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 00:00 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT6739
Affected: MT6761 Affected: MT6765 Affected: MT6768 Affected: MT6781 Affected: MT6789 Affected: MT6833 Affected: MT6835 Affected: MT6853 Affected: MT6855 Affected: MT6877 Affected: MT6878 Affected: MT6879 Affected: MT6883 Affected: MT6885 Affected: MT6886 Affected: MT6889 Affected: MT6893 Affected: MT6895 Affected: MT6897 Affected: MT6983 Affected: MT6985 Affected: MT6989 Affected: MT6991 Affected: MT6993 Affected: MT8766 Affected: MT8766R Affected: MT8768 Affected: MT8775 Affected: MT8781 Affected: MT8792 Affected: MT8796 Affected: MT8873 Affected: MT8883 Affected: MT8893 |
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GCVE-1-2026-20249 (CVE-2026-86347)
Vulnerability from gna-1 – Published: 2026-09-07 09:30 – Updated: 2026-09-07 09:30
VLAI
EPSS
VEX
Title
MISP Missing Authorization on Template File Upload Allows Authenticated Disk Exhaustion
Summary
Affected versions of MISP allow any authenticated user to access TemplatesController::uploadFile() because the ACL entry for templates/uploadFile used the wildcard *. This bypasses the intended role restrictions applied to neighboring template-management operations.
The upload handler accepts arbitrary content with only minimal checks and writes it into app/tmp/files/. A low-privileged or read-only user can therefore repeatedly upload files and consume server disk space without requiring perm_add or perm_template. The fix changes the ACL requirement from * to perm_add.
The commit also rules out stronger impacts: uploaded files receive random names, path traversal/predictable overwrite is not available, the temporary directory is outside the web root, and the files are not directly served over HTTP. Therefore, the issue should not be described as arbitrary file overwrite, stored XSS, or RCE.
Version affected: ≤2.5.45
Severity
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/8e8885971 | patch |
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GCVE-1-2026-20228 (CVE-2026-86408)
Vulnerability from gna-1 – Published: 2026-09-07 12:11 – Updated: 2026-09-07 12:11
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
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/2edde619b | patch |
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GCVE-1-2026-20223 (CVE-2026-86451)
Vulnerability from gna-1 – Published: 2026-09-07 12:59 – Updated: 2026-09-07 12:59
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
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/c0cb5c9f8 | patch |
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GCVE-1-2026-20216 (CVE-2026-86441)
Vulnerability from gna-1 – Published: 2026-09-07 12:39 – Updated: 2026-09-07 12:39
VLAI
EPSS
VEX
Title
MISP Dashboard Organisation Widgets Bypass Organisation-Index Restrictions and Expose Hidden Organisation Data
Summary
Affected versions of MISP contain inconsistent authorization checks across dashboard widgets that display organisation information.
Several organisation-related widgets did not honor Security.hide_organisation_index_from_users. As a result, authenticated users without the perm_sharing_group permission could enumerate organisations even though the normal organisation index was intentionally hidden from them.
The affected widgets included paths that:
*
returned organisation names and identifiers;
*
could expose additional organisation database fields through JSON export because unrestricted find('all') queries fetched full rows;
*
accepted limit=0 or negative values in a way that could effectively remove the result limit and return the entire organisation table.
A related organisation-contributor leaderboard also ignored the same visibility setting. Its handler counted Event.orgc_id across the entire event table and mapped those IDs to organisation names, revealing every organisation with events regardless of whether the caller could see any of those events. The fix withdraws this widget entirely for users who lack organisation-index visibility.
Version affected: ≤2.5.45
Severity
CWE
Assigner
References
2 references
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GCVE-1-2026-20196 (CVE-2026-86342)
Vulnerability from gna-1 – Published: 2026-09-07 09:02 – Updated: 2026-09-07 09:06
VLAI
EPSS
VEX
Title
MISP Freetext Feed Preview Improper Authorization Exposes Restricted Event and Feed Information
Summary
Affected versions of MISP contain improper authorization checks in the freetext feed preview functionality. The preview performed correlation lookups against attributes from events without applying the requesting user's ACL, allowing restricted event correlations and associated event information to be exposed to users who could not otherwise access those events. The vulnerable queries were scoped only by attribute values and deletion status rather than MISP's event, organization, sharing-group, attribute, and object-level access controls.
The same preview functionality also returned cross-feed correlation information without properly restricting the feed list to feeds visible to the caller. This exposed metadata for feeds that were not marked lookup_visible; one affected response additionally included the configured feed URL even though that value was not required by the feature.
The fixes apply the caller's ACL to attribute correlation searches, remove feed URLs from correlation results, restrict cross-feed results according to feed visibility, and correct host-organization ID comparison so the authorization rules are applied consistently.
Version affected: ≤2.5.45
Severity
CWE
- CWE-862 - Missing Authorization
Assigner
References
4 references
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CVE-2026-20193 (GCVE-0-2026-20193)
Vulnerability from cvelistv5 – Published: 2026-05-06 16:15 – Updated: 2026-05-06 17:48
VLAI
EPSS
VEX
Title
Cisco Identity Services Engine Authentication Bypass Vulnerability
Summary
A vulnerability in the RADIUS Policy API endpoints of Cisco ISE could allow an authenticated, remote attacker with read-only Administrator privileges to gain unauthorized access to sensitive information on an affected device.
This vulnerability is due to improper role-based access control (RBAC) permissions on the RADIUS Policy API endpoints. An attacker could exploit this vulnerability by bypassing the web-based management interface and directly calling an affected endpoint. A successful exploit could allow the attacker to gain unauthorized read access to sensitive RADIUS Policy details that are restricted for their role.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 17:35 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software |
Affected:
3.3.0
Affected: 3.3 Patch 2 Affected: 3.3 Patch 1 Affected: 3.3 Patch 3 Affected: 3.4.0 Affected: 3.3 Patch 4 Affected: 3.4 Patch 1 Affected: 3.3 Patch 5 Affected: 3.3 Patch 6 Affected: 3.4 Patch 2 Affected: 3.3 Patch 7 Affected: 3.4 Patch 3 Affected: 3.5.0 Affected: 3.4 Patch 4 Affected: 3.3 Patch 8 Affected: 3.5 Patch 1 Affected: 3.3 Patch 9 Affected: 3.4 Patch 5 Affected: 3.5 Patch 3 Affected: 3.5 Patch 2 Affected: 3.3 Patch 10 |
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CVE-2026-20189 (GCVE-0-2026-20189)
Vulnerability from cvelistv5 – Published: 2026-05-06 16:15 – Updated: 2026-05-06 17:48
VLAI
EPSS
VEX
Title
Cisco Prime Infrastructure Information Disclosure Vulnerability
Summary
A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authenticated, remote attacker to download arbitrary log files from the server.
This vulnerability is due to insufficient authorization checks on the download service API. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to download sensitive log files that they would otherwise not have authorization to access.
To exploit this vulnerability, the attacker must have valid credentials to access the web-based management interface of the affected device.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 17:46 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Prime Infrastructure |
Affected:
3.6.0
Affected: 3.7.0 Affected: 3.4.0 Affected: 3.3.0 Affected: 3.5.0 Affected: 3.2.0-FIPS Affected: 3.8.0-FED Affected: 3.9.0 Affected: 3.8.0 Affected: 3.10.0 Affected: 3.9.1 Affected: 3.8.1 Affected: 3.7.1 Affected: 3.5.1 Affected: 3.4.2 Affected: 3.3.1 Affected: 3.2.1 Affected: 3.2.2 Affected: 3.4.1 Affected: 3.10.2 Affected: 3.10.3 Affected: 3.10 Affected: 3.10.1 Affected: 3.7.1 Update 03 Affected: 3.7.1 Update 04 Affected: 3.7.1 Update 06 Affected: 3.7.1 Update 07 Affected: 3.8.1 Update 01 Affected: 3.8.1 Update 02 Affected: 3.8.1 Update 03 Affected: 3.8.1 Update 04 Affected: 3.9.1 Update 01 Affected: 3.9.1 Update 02 Affected: 3.9.1 Update 03 Affected: 3.9.1 Update 04 Affected: 3.10 Update 01 Affected: 3.4.2 Update 01 Affected: 3.6.0 Update 04 Affected: 3.6.0 Update 02 Affected: 3.6.0 Update 03 Affected: 3.6.0 Update 01 Affected: 3.5.1 Update 03 Affected: 3.5.1 Update 01 Affected: 3.5.1 Update 02 Affected: 3.7.0 Update 03 Affected: 3.8.0 Update 01 Affected: 3.8.0 Update 02 Affected: 3.7.1 Update 01 Affected: 3.7.1 Update 02 Affected: 3.7.1 Update 05 Affected: 3.9.0 Update 01 Affected: 3.3.0 Update 01 Affected: 3.4.1 Update 02 Affected: 3.4.1 Update 01 Affected: 3.5.0 Update 03 Affected: 3.5.0 Update 01 Affected: 3.5.0 Update 02 Affected: 3.10.4 Affected: 3.10.4 Update 01 Affected: 3.10.4 Update 02 Affected: 3.10.4 Update 03 Affected: 3.10.5 Affected: 3.10.6 Affected: 3.10.6 Update 01 Affected: 3.10.6 Update 02 |
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GCVE-1-2026-20175 (CVE-2026-85226)
Vulnerability from gna-1 – Published: 2026-09-03 14:35 – Updated: 2026-09-03 14:35
VLAI
EPSS
VEX
Title
MISP OnDemand Correlation Engine Missing Access Control Allows Disclosure of Restricted Correlations
Summary
MISP contains an authorization flaw in the OnDemand correlation engine where correlations were calculated solely from matching attribute values without applying the distribution, sharing group, organization, or other access-control restrictions associated with the correlated attributes and events. As a result, an authenticated user could receive correlation results referring to attributes or events that the user was not authorized to access.
The vulnerable correlation collection path did not take the requesting user into account. The patch changes the correlation collector to accept the current user and filters the resulting attribute identifiers through MISP's existing fetchAttributesSimple() authorization logic, which evaluates event-, attribute-, object-, distribution-, and sharing-group-level restrictions against the live data.
The issue also affected paths relying on previously stored correlation data. Because the OnDemand engine does not maintain the stored correlation table, its denormalized access-control information could be stale. The patch therefore validates correlated attribute identifiers against the current ACLs before returning them and additionally applies normal event visibility conditions when retrieving related events.
An authenticated low-privileged user could exploit this issue by querying or creating attributes that correlate with restricted MISP content, potentially learning information about otherwise inaccessible events or attributes.
Severity
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/f51342f30 | patch |
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GCVE-1-2026-20170 (CVE-2026-73155)
Vulnerability from gna-1 – Published: 2026-08-11 07:31 – Updated: 2026-08-11 07:31
VLAI
EPSS
VEX
Title
cti-transmute Missing Authorization Allows Reactions to Private Comments
Summary
Affected versions of cti-transmute allow authenticated users to add or remove emoji reactions on comments without first checking whether those users are authorized to view the target comment.
The vulnerable react() handler passed an attacker-controlled comment_id directly to comments_repo.toggle_reaction() after only validating that the ID existed syntactically and that the requested emoji was permitted. Because comment-level visibility was not enforced, a user who could identify the ID of a private or otherwise inaccessible comment could modify reaction state on that comment despite lacking permission to access it.
The fix retrieves the target comment, rejects missing or deleted comments, retrieves its associated conversion, and enforces access.can_see_comment(current_user, comment, conversion). Unauthorized requests now receive HTTP 403.
Severity
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/cti-transmute/commit/a18c… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MISP | cti-transmute |
Affected:
0 , ≤ 1.4.0
(semver)
|
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"title": "cti-transmute Missing Authorization Allows Reactions to Private Comments",
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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.
CAPEC-665: Exploitation of Thunderbolt Protection Flaws
An adversary leverages a firmware weakness within the Thunderbolt protocol, on a computing device to manipulate Thunderbolt controller firmware in order to exploit vulnerabilities in the implementation of authorization and verification schemes within Thunderbolt protection mechanisms. Upon gaining physical access to a target device, the adversary conducts high-level firmware manipulation of the victim Thunderbolt controller SPI (Serial Peripheral Interface) flash, through the use of a SPI Programing device and an external Thunderbolt device, typically as the target device is booting up. If successful, this allows the adversary to modify memory, subvert authentication mechanisms, spoof identities and content, and extract data and memory from the target device. Currently 7 major vulnerabilities exist within Thunderbolt protocol with 9 attack vectors as noted in the Execution Flow.