CVE-2026-82043: medium-severity vulnerability in UTMStack
UTMStack < 11.2.16 Account Enumeration via Password Reset Endpoint
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9epss 0.2%
exploitation probability
0.2%top 85% of all CVEs
observed exploitation
nono source reports it
UTMStack before 11.2.16 contains an account enumeration vulnerability that allows unauthenticated attackers to determine registered email addresses by observing differing HTTP responses from the POST /api/account/reset-password/init endpoint. Attackers can submit arbitrary email addresses and distinguish registered accounts, which return 200 OK, from unregistered accounts, which trigger a 500 Internal Server Error with backend error details, enabling targeted phishing or credential attacks.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
UTMStack · UTMStackRelated CVEs — UTMStack
In the same product, most dangerous first.
CVE-2026-82042CRITICALUTMStack < 11.2.16 Authentication Bypass via InternalApiKeyFilterEPSS 0.5%CVE-2026-82041MEDIUMUTMStack < 11.2.16 Missing Authorization via Command WebSocketEPSS 0.4%CVE-2026-82039HIGHUTMStack < 11.2.16 SQL Injection via searchGroupsByFilterEPSS 0.3%CVE-2026-82045HIGHUTMStack < 11.2.16 JPQL Injection via searchPropertyValuesEPSS 0.3%CVE-2026-82044MEDIUMUTMStack < 11.2.16 Server-Side Request Forgery via downloadPdfEPSS 0.3%CVE-2026-82040MEDIUMUTMStack < 11.2.16 SSRF via IdentityProviderServiceEPSS 0.2%