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You can search for vulnerabilities managed by JVN (Japan Vulnerability Note) and NVD (National Vulnerability Database).
Search keywords must be entered in English otherwise will not be searched in both JVN and NVD.

To search by CWE, please refer to the CWE Overview and check the CWE number.

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JVN Vulnerability Information

Update Date":May 21, 2026, 6:01 p.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
Search
731 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける有効期限後のメモリの解放の欠如に関する脆弱性 CWE-401
有効期限後のメモリの解放の欠如 		CVE-2026-43287 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
732 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける初期化されていないリソースの使用に関する脆弱性 CWE-908
初期化されていないリソースの使用 		CVE-2026-43288 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
733 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける不特定の脆弱性 CWE-noinfo
情報不足 		CVE-2026-43289 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
734 7.5 重要
Network 		Linux Linux Kernel LinuxのLinux Kernelにおけるリソースのロックに関する脆弱性 CWE-667
不適切なロック 		CVE-2026-43296 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
735 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux KernelにおけるNULL ポインタデリファレンスに関する脆弱性 CWE-476
NULL ポインタデリファレンス 		CVE-2026-43297 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
736 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける不特定の脆弱性 CWE-noinfo
情報不足 		CVE-2026-43298 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
737 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける不特定の脆弱性 CWE-noinfo
情報不足 		CVE-2026-43299 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
738 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux KernelにおけるNULL ポインタデリファレンスに関する脆弱性 CWE-476
NULL ポインタデリファレンス 		CVE-2026-43300 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
739 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおける整数アンダーフローの脆弱性 CWE-191
整数アンダーフロー 		CVE-2026-43301 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
740 5.5 警告
Local 		Linux Linux Kernel LinuxのLinux Kernelにおけるバッファサイズの計算の誤りに関する脆弱性 CWE-131
正しくないバッファサイズ計算 		CVE-2026-43302 2026-05-18 11:29 2026-05-8 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 22, 2026, 4:08 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
Search
941 4.3 MEDIUM
Network 		- - Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to limit the size of the request body on the start meeting API endpoint, which allows an authenticated attacker to cau… New CWE-770
 Allocation of Resources Without Limits or Throttling 		CVE-2026-2325 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
942 3.1 LOW
Network 		- - Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to enforce client identity binding during the OAuth authorization code redemption flow which allows an authenticated OAuth client to red… New CWE-305
 Authentication Bypass by Primary Weakness 		CVE-2026-6334 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
943 4.3 MEDIUM
Network 		- - Mattermost Plugins versions <=11.5 11.1.5 10.13.11 11.3.4.0 fail to have API-level checks on which groups the user can create issues or attach comments to which allows a user that is member of multip… New CWE-863
 Incorrect Authorization 		CVE-2026-6341 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
944 4.3 MEDIUM
Network 		- - Mattermost Plugins versions <=11.5 11.1.5 10.13.11 11.3.4.0 fail to appropriately check for valid namespaces which allows plugin users to create subscriptions to groups that were not whitelisted via … New CWE-863
 Incorrect Authorization 		CVE-2026-6342 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
945 6.5 MEDIUM
Network 		- - Mattermost Plugins versions <=11.5 11.1.5 10.13.11 11.3.4.0 fail to properly check for permissions when processing commands in the Gitlab plugin which allows normal users to uninstall instances or se… New CWE-862
 Missing Authorization 		CVE-2026-3117 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
946 6.5 MEDIUM
Network 		- - Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated cra… New CWE-939
 Improper Authorization in Handler for Custom URL Scheme 		CVE-2026-3471 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
947 3.1 LOW
Network 		- - Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to check if {{team_id}} was being changed when updating playbooks, allowing users with only {{Manage Playbook Configurations}} permissio… New CWE-863
 Incorrect Authorization 		CVE-2026-4286 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
948 3.5 LOW
Network 		- - Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server … New CWE-754
 Improper Check for Unusual or Exceptional Conditions 		CVE-2026-4643 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
949 6.5 MEDIUM
Network 		- - Mattermost versions 11.5.x <= 11.5.1 fail to verify channel membership when processing AI-assisted message rewrites which allows an authenticated attacker to read the content of threads in private ch… New CWE-862
 Missing Authorization 		CVE-2026-5163 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm
950 4.3 MEDIUM
Network 		- - Mattermost versions 11.5.x <= 11.5.1, 11.4.x <= 11.4.3 fail to validate the X-Requested-With header on the burn-on-read reveal endpoint which allows an authenticated channel member to force the revea… New CWE-346
 Origin Validation Error 		CVE-2026-6339 2026-05-19 02:32 2026-05-18 Show GitHub Exploit DB Packet Storm