Vulnerability details

CVE-2026-125758

aptabase aptabase

Aptabase before commit 61d4c01 Authentication Bypass via Known Example AUTH_SECRET

CVSS 4.0

9.1Critical

Remedy

Versions not listed as affected in the CVE record:

aptabase — version 61d4c01298a706d575265461ac07bb956ca7b8d2 and later

Official description

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 scores

Score	Version	Source	Vector
9.1Critical	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`
7.4High	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N`

Affected products

Vendor	Product	Versions	Source
aptabase	aptabase	v < 61d4c01298a706d575265461ac07bb956ca7b8d2	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/aptabase/aptabase/security/advisories/GHSA-gc76-cqm4-vqcf vendor-advisory
https://github.com/aptabase/aptabase/commit/61d4c01298a706d575265461ac07bb956ca7b8d2 patch
https://github.com/aptabase/aptabase/pull/204 issue-trackingpatch
https://github.com/aptabase/self-hosting/commit/b79a472419ff17e485d0bd5b4adf1b1ef2b9953c patch
https://www.vulncheck.com/advisories/aptabase-before-commit-61d4c01-authentication-bypass-via-known-example-auth-secret third-party-advisory

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Details

Published: 2026-11-10
Last updated: 2026-11-10
State: Published
Assigner (CNA): VulnCheck
Kolun priority: 21 · Low

Exploit prediction (EPSS)

0.34%

Probability of exploitation in 30 days

28.1%

Percentile (among all CVEs)

Weaknesses (CWE)

CWE-1188
Initialization of a Resource with an Insecure Default