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.
5266 vulnerabilities reference this CWE, most recent first.
CVE-2026-82582 (GCVE-0-2026-82582)
Vulnerability from cvelistv5 – Published: 2026-09-10 06:09 – Updated: 2026-09-10 12:58
VLAI
EPSS
VEX
Summary
An authorization bypass vulnerability exists in SHIRASAGI through a user-controlled key, which may allow an unauthorized attacker to retrieve files from the groupware's shared file feature.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 12:58 UTC
CWE
- CWE-639 - Authorization bypass through user-controlled key
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SHIRASAGI Project | SHIRASAGI |
Affected:
0 , ≤ v1.20.2
(semver)
|
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CVE-2026-82564 (GCVE-0-2026-82564)
Vulnerability from cvelistv5 – Published: 2026-08-31 01:06 – Updated: 2026-09-01 17:18
VLAI
EPSS
VEX
Title
Identity tool filter in AshAi accepts operator maps, allowing update or destroy of unidentified records
Summary
Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_ai allows a caller of an identity-configured tool to update or destroy records it never identified, including every row in the table.
In AshAi.Tool.Execution, identity_filter/3 built the update/destroy filter directly from the raw tool arguments as [{key, Map.get(arguments, to_string(key))}] and passed it to Ash.Query.do_filter/2. A map value is parsed as a predicate expression rather than a literal, so a caller can send {"public_ref": {"not_eq": "<own-ref>"}} and, combined with Ash.Query.limit(1) and Ash.bulk_update!/Ash.bulk_destroy!, retarget the write at a record it never identified; an omitted key yields an IS NULL filter that matches an arbitrary row. The fix casts each identity value to the field type, rejecting non-scalar inputs.
This issue affects ash_ai: from 0.6.0 before 1.0.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:04 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_ai/security/ad… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-82564.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-82564 | related |
| https://github.com/ash-project/ash_ai/commit/87f6… | patch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ash-project | ash_ai |
Affected:
0.6.0 , < 1.0.0
(semver)
cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:* |
|
| ash-project | ash_ai |
Affected:
bc2122f78fca6c11d8ec2b9ac53148ec17476460 , < 87f616d5bfbf7af43346f0701ae17f853789a602
(git)
cpe:2.3:a:ash-project:ash_ai:*:*:*:*:*:*:*:* |
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CVE-2026-82441 (GCVE-0-2026-82441)
Vulnerability from cvelistv5 – Published: 2026-09-14 13:58 – Updated: 2026-09-14 19:44
VLAI
EPSS
VEX
Title
Apache Storm Nimbus: Cross-Tenant Blob Deletion and Cluster Denial of Service via Unvalidated Topology Dependency Keys
Summary
Description
A submitted topology carries two lists of blobstore keys, `dependency_jars` and `dependency_artifacts`,
which the client fills in after uploading the corresponding blobs. Nimbus performed no validation of their
contents on the submission path, yet acts on them in two places.
During cleanup of a finished topology, Nimbus deletes the keys named in those lists, and the deletion is
performed as the Nimbus subject, for which the blobstore short-circuits its ACL check. A submitter who
listed a key belonging to another topology, such as its `-stormjar.jar`, could therefore cause
that blob to be deleted when their own topology was cleaned up.
Separately, on acquiring leadership a Nimbus compares the dependency keys of all active topologies against
the blobstore contents and surrenders leadership if any is missing. A single key that does not exist, on a
single active topology, therefore causes every Nimbus to acquire leadership, surrender it and requeue
indefinitely, leaving the cluster without a leader and unable to schedule, clean up or accept submissions.
Mitigation
Upgrade to 3.1.0, where a submission is refused unless every entry in both lists is a dependency blob key
and exists in the blobstore.
Note that this validates new submissions only; a topology stored by an affected version with an invalid list
is unaffected by the upgrade. An operator whose cluster is failing to retain a leader should inspect the
Nimbus log for the dependency keys reported as missing and remove or resubmit the topology naming them.
Users who cannot upgrade immediately should restrict topology submission to trusted principals.
Credit
This issue was discovered by rzo1 while investigating an unrelated blobstore defect.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 19:44 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/qzh245bczoxw4mfny… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Storm Nimbus |
Affected:
3.0.0 , < 3.1.0
(semver)
|
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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
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-2026-82348 (GCVE-0-2026-82348)
Vulnerability from cvelistv5 – Published: 2026-09-28 07:36 – Updated: 2026-09-29 14:57
VLAI
EPSS
VEX
Title
Apache Roller: Cross-weblog resource tampering via unscoped authoring lookups
Summary
Authorization Bypass Through User-Controlled Key in Apache Roller 6.1.5 allows an authenticated user with authoring rights on one weblog to read, modify, or delete resources belonging to another weblog through unscoped identifier-based lookups. This affects multi-user installations where users are intended to be isolated between weblogs; no optional feature or non-default configuration is required. A user with administrator rights on their weblog can also overwrite another weblog's Velocity template, whose content is evaluated when the victim weblog renders. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which scopes authoring resource lookups to the acting weblog.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 14:56 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Roller |
Affected:
6.1.5
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CVE-2026-82323 (GCVE-0-2026-82323)
Vulnerability from cvelistv5 – Published: 2026-09-28 12:36 – Updated: 2026-09-28 13:31
VLAI
EPSS
VEX
Title
Improper Authorization in Enocta Educational's Enocta Platform
Summary
Authorization bypass through User-Controlled key vulnerability in Enocta Educational Technologies Inc. Enocta Platform allows Exploitation of Trusted Identifiers.
This issue affects Enocta Platform: through 2026-09-28.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:01 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Enocta Educational Technologies Inc. | Enocta Platform |
Affected:
0 , ≤ 2026-09-28
(date)
|
Date Public
2026-09-28 12:34
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CVE-2026-82290 (GCVE-0-2026-82290)
Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-09-24 14:20
VLAI
EPSS
VEX
Title
Chainlit Feedback Endpoints Missing Ownership Validation
Summary
Chainlit through 2.12.0 fails to validate ownership of feedback records in PUT and DELETE endpoints. Authenticated attackers can delete or modify other users' feedback by supplying arbitrary feedback identifiers, corrupting human-rating data used for model evaluation.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 18:50 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/Chainlit/chainlit/issues/2975 | issue-tracking |
| https://github.com/Chainlit/chainlit | product |
| https://github.com/Chainlit/chainlit/blob/190ea74… | technical-description |
| https://www.vulncheck.com/advisories/chainlit-fee… | third-party-advisory |
Impacted products
Date Public
2026-07-03 00:00
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CVE-2026-82284 (GCVE-0-2026-82284)
Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-09-24 14:20
VLAI
EPSS
VEX
Title
Quivr Chat Endpoints Missing Ownership Validation
Summary
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Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 20:23 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/QuivrHQ/quivr/issues/3697 | issue-tracking |
| https://github.com/QuivrHQ/quivr | product |
| https://github.com/QuivrHQ/quivr/blob/v0.0.322/ba… | technical-description |
| https://www.vulncheck.com/advisories/quivr-chat-e… | third-party-advisory |
Impacted products
Date Public
2026-07-03 00:00
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CVE-2026-82283 (GCVE-0-2026-82283)
Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-09-24 14:20
VLAI
EPSS
VEX
Title
VoltAgent Memory API Handlers Missing Ownership Checks
Summary
VoltAgent through 2.1.20 fails to validate conversation ownership in memory API handlers, allowing authenticated users to access other users' conversations. Attackers can read, modify, and delete arbitrary conversations and messages by supplying caller-controlled identifiers to memory endpoints.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 20:26 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/VoltAgent/voltagent/issues/1371 | issue-tracking |
| https://github.com/VoltAgent/voltagent | product |
| https://github.com/VoltAgent/voltagent/blob/44b4c… | technical-description |
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Impacted products
Date Public
2026-07-03 00:00
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CVE-2026-82281 (GCVE-0-2026-82281)
Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-09-03 13:25
VLAI
EPSS
VEX
Title
Kotaemon Missing Ownership Check in Conversation Functions
Summary
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Severity
7.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 19:01 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/Cinnamon/kotaemon/issues/846 | issue-tracking |
| https://github.com/Cinnamon/kotaemon | product |
| https://github.com/Cinnamon/kotaemon/blob/9ad3e4e… | technical-description |
| https://www.vulncheck.com/advisories/kotaemon-mis… | third-party-advisory |
Impacted products
Date Public
2026-07-03 00:00
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},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-82281",
"datePublished": "2026-08-28T16:19:01.076Z",
"dateReserved": "2026-08-28T11:12:50.930Z",
"dateUpdated": "2026-09-03T13:25:11.198Z",
"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.