CVE-2026-125758NVD
Vulnerability Summary
Aptabase before commit 61d4c01 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge sign-in links by using the publicly known example AUTH_SECRET. Attackers can enumerate registered e-mails via /api/_auth/signin, forge HS256 JWTs redeemed by /api/_auth/continue, impersonate users, export analytics data, and transfer app ownership.
CVSS v4.0 Base Metrics — Score 9.1 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsPresent
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 7.4 (HIGH)
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
Affected & Patched Versions
- aptabase aptabase < 61d4c01298a706d575265461ac07bb956ca7b8d2
- aptabase aptabase 61d4c01298a706d575265461ac07bb956ca7b8d2
External References
- https://github.com/aptabase/aptabase/security/advisories/GHSA-gc76-cqm4-vqcf
- https://github.com/aptabase/aptabase/commit/61d4c01298a706d575265461ac07bb956ca7b8d2
- https://github.com/aptabase/aptabase/pull/204
- https://github.com/aptabase/self-hosting/commit/b79a472419ff17e485d0bd5b4adf1b1ef2b9953c
- https://www.vulncheck.com/advisories/aptabase-before-commit-61d4c01-authentication-bypass-via-known-example-auth-secret