CRITICALhex →
AshAuthentication vulnerable to OAuth2/OIDC account takeover via email-based user matching
AshAuthentication vulnerable to OAuth2/OIDC account takeover via email-based user matching
Affected packages
- ash_authentication
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-777c-2fxx-qr28
- https://nvd.nist.gov/vuln/detail/CVE-2026-49757
- https://github.com/team-alembic/ash_authentication/commit/64530644f9b37ebb76ca14aeb83a77597a0034b7
- https://github.com/team-alembic/ash_authentication/commit/728b8d28c1b5f465fa1116ef044a815300fc733d
- https://cna.erlef.org/cves/CVE-2026-49757.html
- https://github.com/team-alembic/ash_authentication
- https://github.com/team-alembic/ash_authentication/releases/tag/v4.14.0
- https://github.com/team-alembic/ash_authentication/releases/tag/v5.0.0-rc.10
- https://osv.dev/vulnerability/EEF-CVE-2026-49757
Structured record: https://osv.dev/vulnerability/GHSA-777c-2fxx-qr28
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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