# CVE-2026-123618: ABP Framework before 10.7.1 Authentication Bypass via External Login Provider Status: published. Published: 2026-11-06. Updated: 2026-11-11. ABP Framework before 10.7.1 contains an authentication bypass vulnerability that skips account state and two-factor checks when password login succeeds through a registered IExternalLoginProvider. Attackers holding the external directory password for deactivated, locked, or 2FA-protected accounts can obtain valid access tokens from the /connect/token password grant. ## Remediation - fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/abpframework/abp/pull/26305 - fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/abpframework/abp/commit/59b04c48dddbf79c58a65808400b4ed11f902ef1 - fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/abpframework/abp/commit/b2fd3cf049c69e585fb621049fde55349865d132 ## Affected products and versions - abpframework / abp (Volo.Abp.OpenIddict.AspNetCore): ≥ 0; < 10.7.1 (affected, semver). Source: CNA: VulnCheck ## Severity and prioritization - CVSS 4.0: 7.6 (high); CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck - CVSS 3.1: 6.8 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N; source: CNA: VulnCheck - CVSS 4.0: 7.6 (high); CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com - CVSS 3.1: 6.8 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N; source: NVD: disclosure@vulncheck.com - CISA KEV: No listing in collected sources - EPSS: 0.32% as of 2026-11-10; percentile 25.26% - SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP - Weaknesses: CWE-288 ## Exploit evidence No exploit evidence in collected sources. This is not proof of no exploitation. ## References - https://github.com/abpframework/abp/pull/26305 (CNA: VulnCheck; issue-tracking, patch) - https://github.com/abpframework/abp/commit/59b04c48dddbf79c58a65808400b4ed11f902ef1 (CNA: VulnCheck; patch) - https://github.com/abpframework/abp (CNA: VulnCheck; product) - https://github.com/abpframework/abp/commit/b2fd3cf049c69e585fb621049fde55349865d132 (CNA: VulnCheck; patch) - https://github.com/abpframework/abp/releases/tag/10.7.1 (CNA: VulnCheck; release-notes) - https://github.com/abpframework/abp/blob/10.7.0/modules/openiddict/src/Volo.Abp.OpenIddict.AspNetCore/Volo/Abp/OpenIddict/Controllers/TokenController.Password.cs#L52-L77 (CNA: VulnCheck; technical-description) - https://www.vulncheck.com/advisories/abp-framework-before-10.7.1-authentication-bypass-via-external-login-provider (CNA: VulnCheck; third-party-advisory) - https://github.com/abpframework/abp (disclosure@vulncheck.com) - https://github.com/abpframework/abp/blob/10.7.0/modules/openiddict/src/Volo.Abp.OpenIddict.AspNetCore/Volo/Abp/OpenIddict/Controllers/TokenController.Password.cs#L52-L77 (disclosure@vulncheck.com) - https://github.com/abpframework/abp/commit/59b04c48dddbf79c58a65808400b4ed11f902ef1 (disclosure@vulncheck.com) - https://github.com/abpframework/abp/commit/b2fd3cf049c69e585fb621049fde55349865d132 (disclosure@vulncheck.com) - https://github.com/abpframework/abp/pull/26305 (disclosure@vulncheck.com) - https://github.com/abpframework/abp/releases/tag/10.7.1 (disclosure@vulncheck.com) - https://www.vulncheck.com/advisories/abp-framework-before-10.7.1-authentication-bypass-via-external-login-provider (disclosure@vulncheck.com) ## Provenance - CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-123618; retrieved 2026-11-11; source updated 2026-11-11 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-123618; retrieved 2026-11-06; source updated 2026-11-06 - FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-123618; retrieved 2026-11-11; source updated Not reported Revision: 2062421ed0b872f1086dd2e77e38763c55d376a7e0f9feb500d410093259cb98 Canonical: https://y2.dev/cve/CVE-2026-123618 ## Agent and API access Public CVE pages, Markdown, and JSON are free to read without an account or API key. - Public catalog: https://y2.dev/cve/index.json. 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