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Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.

🗓️ 19 Jan 2022 08:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

Dovecot before 2.3.15 allows path traversal to hijack the JWT validation key during local validation.

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19 Jan 2022 08:00Current
7High risk
Vulners AI Score7
CVSS 22.1
CVSS 3.15.5 - 7.5
EPSS0.00762
1