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CVE-2026-33868

🗓️ 28 Mar 2026 23:09:58Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 20 Views

Unauthenticated open redirect in Mastodon before versions 4.5.8, 4.4.15, 4.3.21 via encoded path segments enabling phishing.

Related
Refs
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Family
attackerkb
attackerkb
CVE-2026-33868
27 Mar 202619:50
–attackerkb
circl
Circl
CVE-2026-33868
25 Mar 202611:02
–circl
cnnvd
CNNVD
Mastodon 输入验证错误漏洞
27 Mar 202600:00
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cve
CVE
CVE-2026-33868
27 Mar 202619:50
–cve
cvelist
Cvelist
CVE-2026-33868 Mastodon has a GET-Based Open Redirect via '/web/%2F<domain>'
27 Mar 202619:50
–cvelist
euvd
EUVD
EUVD-2026-16783
27 Mar 202619:50
–euvd
kittysploit
KittySploit
Mastodon - Open Redirect Detection
28 Jul 202611:27
–kittysploit
nuclei
Nuclei
Mastodon - Open Redirect
17 Oct 202602:05
–nuclei
nvd
NVD
CVE-2026-33868
27 Mar 202620:16
–nvd
osv_bit
osv_bit
BIT-MASTODON-2026-33868 Mastodon has a GET-Based Open Redirect via '/web/%2F<domain>'
31 Mar 202608:45
–osv_bit
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28 Mar 2026 23:09Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.14.3 - 6.1
EPSS0.00552
SSVC
20