Common Weakness Enumeration
CWE-287
DiscouragedImproper Authentication
Abstraction: Class · Status: Draft
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
6974 vulnerabilities reference this CWE, most recent first.
CVE-2026-101986 (GCVE-0-2026-101986)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:20 – Updated: 2026-10-15 03:57
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: J-Web permits pre-authentication CGI execution
Summary
An Improper Authentication vulnerability in J-Web of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to bypass J-Web authentication and execute CGI content with elevated privileges via a crafted HTTP request.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 00:00 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7.7
(custom)
Affected: 23.4 , < 23.4R2-S8.13 (custom) Affected: 24.2 , < 24.2R2-S5.5 (custom) Affected: 24.4 , < 24.4R2-S5 (custom) Affected: 25.2 , < 25.2R2-S2 (custom) Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7.7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8.11-EVO (custom) Affected: 24.2 , < 24.2R2-S5.6-EVO (custom) Affected: 24.4 , < 24.4R2-S5-EVO (custom) Affected: 25.2 , < 25.2R2-S2-EVO (custom) Affected: 25.4 , < 25.4R1-S3-EVO (custom) Affected: 26.2 , < 26.2R1-S2-EVO (custom) Affected: 23.4X100 (custom) Affected: 25.2X100 , < 25.2X100-D35-EVO (custom) Affected: 25.4X300 , < 25.4X300-D40-EVO (custom) |
Date Public
2026-10-14 16:00
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CVE-2026-101956 (GCVE-0-2026-101956)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:18 – Updated: 2026-10-15 03:57
VLAI
EPSS
VEX
Title
Junos OS: Unauthorized root command execution when J-Web is enabled
Summary
An Improper Authentication vulnerability in the J-Web web management component of Juniper Networks Junos OS allows an unauthenticated remote attacker to execute arbitrary Junos commands with root privileges via the exposed J-Web web interface.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 00:00 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112188 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
25.2 , < 25.2R2-S2
(custom)
Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
Date Public
2026-10-14 16:00
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CVE-2026-101954 (GCVE-0-2026-101954)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:22 – Updated: 2026-10-16 14:18
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: Unauthenticated network access causes full device takeover when J-Web is enabled
Summary
An Improper Authentication vulnerability in the J-Web management interface and its NETCONF session handling of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to obtain root-level device configuration access and take over the device via a reachable J-Web HTTP or HTTPS service when web management is enabled.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 03:56 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
25.2 , < 25.2R2-S2
(custom)
Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
25.2 , < 25.2R2-S2-EVO
(custom)
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Date Public
2026-10-14 16:00
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CVE-2026-101281 (GCVE-0-2026-101281)
Vulnerability from cvelistv5 – Published: 2026-09-29 00:45 – Updated: 2026-10-01 15:27 X_Open Source
VLAI
EPSS
VEX
Title
Trusted Domain Project OpenDMARC SPF Macro opendmarc_spf.c opendmarc_sp2_find_mailfrom_domain improper authentication
Summary
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_sp2_find_mailfrom_domain of the file libopendmarc/opendmarc_spf.c of the component SPF Macro Handler. This manipulation causes improper authentication. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: c48a74c758677fc5272a73eff15ffdbf8afda1a6. Applying a patch is the recommended action to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:27 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/411038 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/411038/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-101281 | third-party-advisory |
| https://vuldb.com/submit/918284 | third-party-advisory |
| https://github.com/trusteddomainproject/OpenDMARC… | issue-tracking |
| https://github.com/trusteddomainproject/OpenDMARC… | issue-trackingpatch |
| https://xuyongzhe-vt.github.io/share/opendmarc-sp… | exploit |
| https://github.com/trusteddomainproject/OpenDMARC… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Trusted Domain Project | OpenDMARC |
Affected:
1.4.0
Affected: 1.4.1 Affected: 1.4.2 cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:* |
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CVE-2026-101280 (GCVE-0-2026-101280)
Vulnerability from cvelistv5 – Published: 2026-09-29 00:30 – Updated: 2026-09-29 17:28
VLAI
EPSS
VEX
Title
Trusted Domain Project OpenDMARC Multi-Record Set opendmarc_policy_query_dmarc authentication spoofing
Summary
A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected is the function opendmarc_policy_query_dmarc of the component Multi-Record Set Handler. The manipulation results in authentication bypass by spoofing. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 17:28 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/411037 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/411037/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-101280 | third-party-advisory |
| https://vuldb.com/submit/918282 | third-party-advisory |
| https://xuyongzhe-vt.github.io/share/opendmarc-mu… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Trusted Domain Project | OpenDMARC |
Affected:
1.4.0
Affected: 1.4.1 Affected: 1.4.2 cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:* |
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CVE-2026-101077 (GCVE-0-2026-101077)
Vulnerability from cvelistv5 – Published: 2026-09-28 15:15 – Updated: 2026-09-28 15:31
VLAI
EPSS
VEX
Title
Netcore NR289-GE boa_temp process_request missing authentication
Summary
A flaw has been found in Netcore NR289-GE 1.4.5102. This impacts the function process_request of the component boa_temp Handler. This manipulation causes missing authentication. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 15:30 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410948 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/410948/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-101077 | third-party-advisory |
| https://vuldb.com/submit/929226 | third-party-advisory |
| https://github.com/senxitoyshuyi-ui/HACKALL/blob/… | exploit |
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CVE-2026-101073 (GCVE-0-2026-101073)
Vulnerability from cvelistv5 – Published: 2026-09-28 14:00 – Updated: 2026-10-01 14:18
VLAI
EPSS
VEX
Title
Netcore NR289-GE CGI Dispatcher boa improper authentication
Summary
A security flaw has been discovered in Netcore NR289-GE 1.4.5102. Impacted is an unknown function of the file /bin/boa of the component CGI Dispatcher. Performing a manipulation results in improper authentication. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:18 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410944 | vdb-entry |
| https://vuldb.com/vuln/410944/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-101073 | third-party-advisory |
| https://vuldb.com/submit/929197 | third-party-advisory |
| https://github.com/senxitoyshuyi-ui/HACKALL/blob/… | exploit |
Impacted products
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CVE-2026-101050 (GCVE-0-2026-101050)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:28 – Updated: 2026-09-28 13:14
VLAI
EPSS
VEX
Title
Heym before 0.0.53 Authentication Bypass via Telegram Webhook
Summary
Heym before 0.0.53 fails to verify the X-Telegram-Bot-Api-Secret-Token header on Telegram webhook endpoints when credential_id is absent or secret_token is empty. Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:14 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/security/advisori… | vendor-advisory |
| https://github.com/heymrun/heym/commit/341d101236… | patch |
| https://www.vulncheck.com/advisories/heym-before-… | third-party-advisory |
Impacted products
Date Public
2026-06-26 00:00
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CVE-2026-101049 (GCVE-0-2026-101049)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:28 – Updated: 2026-09-28 14:18
VLAI
EPSS
VEX
Title
Heym before 0.0.53 Slack Webhook Signature Verification Bypass
Summary
Heym before 0.0.53 fails to verify Slack request signatures when trigger nodes lack credential IDs or have empty signing secrets. Remote unauthenticated attackers can send forged Slack events to known webhook URLs to trigger workflows with the owner's credentials.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 14:17 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/security/advisori… | vendor-advisory |
| https://github.com/heymrun/heym/commit/341d101236… | patch |
| https://www.vulncheck.com/advisories/heym-before-… | third-party-advisory |
Impacted products
Date Public
2026-06-26 00:00
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CVE-2026-101042 (GCVE-0-2026-101042)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:28 – Updated: 2026-09-30 15:28
VLAI
EPSS
VEX
Title
Parse Server 9.0.0 Authentication Bypass via Unverified Provider Identity
Summary
Parse Server is an open-source backend server. In versions >= 9.0.0 < 9.10.1-alpha.10 and >= 8.0.2 < 8.6.91, the code-based authentication adapters (GitHub, Google Play Games, Instagram, LINE, LinkedIn, Microsoft, QQ, Spotify, WeChat, Weibo) verify the client's authorization code with the external provider on signup and on provider linking, but not when authentication data is supplied together with a username and password on the login endpoint. As a result, a low-privileged authenticated user can attach an arbitrary, unverified provider identity to their own account without the provider ever being contacted, spoofing an external identity toward application logic that trusts the linked provider ID. An attacker can also pre-hijack accounts: by claiming the provider ID of a victim who has not yet linked that provider, the victim's later legitimate sign-in with that provider resolves to the attacker's account. Only deployments configuring one of the affected code-based auth adapters are impacted. Versions 9.10.1-alpha.10 and 8.6.91 fix the issue by running the adapter's credential verification on the login and challenge endpoints and rejecting a provider identity already linked to another user. As a workaround, disable the affected code-based auth adapters.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:27 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/parse-community/parse-server/s… | vendor-advisory |
| https://www.vulncheck.com/advisories/parse-server… | third-party-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| parse-community | parse-server |
Affected:
9.0.0 , < 9.10.1-alpha.10
(semver)
Unaffected: 9.10.1-alpha.10 (semver) |
|
| parse-community | parse-server |
Affected:
8.0.2 , < 8.6.91
(semver)
Unaffected: 8.6.91 (semver) |
Date Public
2026-09-13 00:00
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Mitigation
Architecture and Design
Strategy: Libraries or Frameworks
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
CAPEC-114: Authentication Abuse
An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.
CAPEC-115: Authentication Bypass
An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.
CAPEC-151: Identity Spoofing
Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.
CAPEC-194: Fake the Source of Data
An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.
CAPEC-22: Exploiting Trust in Client
An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.
CAPEC-593: Session Hijacking
This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.
CAPEC-633: Token Impersonation
An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.
CAPEC-650: Upload a Web Shell to a Web Server
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
CAPEC-94: Adversary in the Middle (AiTM)
An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.