Security readout for executives and security teams
Plain-English summary
Capgo versions before 12.128.2 allow an enterprise admin in one organization to disrupt accounts in other organizations through the SSO prelink function. The issue can remove victims’ password-based login, potentially forcing recovery or use of an attacker-controlled SSO flow. This is high urgency for Capgo environments using enterprise SSO.
Executive priority
Treat as a near-term remediation item if Capgo is used with enterprise SSO. The business risk is account disruption across organizational boundaries, which can cause access outages and recovery workload. Prioritize upgrade and privilege review over broad incident response unless logs show suspicious activity.
Technical view
The vulnerability is improper authorization in Capgo’s SSO prelink endpoint. A user with org.update_settings permission and an active SSO provider can affect users outside their organization when email domains match the provider configuration. Impact is integrity and availability: password identities can be permanently removed. CVSS is 8.1 high, AV:N/AC:L/PR:L/UI:N.
Likely exposure
Exposure is limited to Capgo deployments before 12.128.2 where enterprise SSO is enabled and administrators have org.update_settings permission. Multi-tenant or shared-domain scenarios are more concerning. The provided sources do not indicate impact to other Capgo products or unrelated SSO systems.
Exploitation context
The attacker needs authenticated administrative privileges in a Capgo organization and an active SSO provider. The sources do not report active exploitation, and the CVE is not listed as CISA KEV in the supplied data. The issue is still material because exploitation is network-accessible and does not require victim interaction.
Researcher notes
The core weakness is authorization scope enforcement on the SSO prelink endpoint, mapped to CWE-285. Evidence supports high integrity and availability impact, but no confidentiality impact is described. Public sources identify affected versions as before 12.128.2; details beyond the advisory text should be confirmed with vendor materials.
Mitigation direction
- Upgrade Capgo to version 12.128.2 or later.
- Review vendor advisory for any environment-specific guidance.
- Limit org.update_settings permission to trusted administrators only.
- Audit active SSO provider configurations and associated email domains.
- Prepare user recovery procedures for affected password identities.
Validation and detection
- Inventory Capgo versions and confirm any instance below 12.128.2.
- Identify organizations with active SSO providers configured.
- Review which users or roles hold org.update_settings permission.
- Check logs for unusual SSO prelink activity affecting unexpected users.
- Confirm password identity status for users sharing SSO email domains.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-285: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-56313 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H2.85.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
7.2HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Source materials
- CVE List V5 sourceCVE List V5
- GitHub Security Advisory (GHSA-x3vq-34gg-cwq7)CVE reference, VulnCheck · vendor-advisory
- VulnCheck Advisory: Capgo - Cross-Organization Account Disruption via SSO Prelink EndpointCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authorization
Improper Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.