NVD / CVE Program· CNA VulnCheck

CVE-2026-56286: Capgo - Account Deletion Without Password Confirmation

Noroxi assessment

Priority: Monitor (action score 28/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.53% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. No account or password is required. No special conditions are required; it is repeatable.
Fixed version: Capgo Capgo 12.128.2.

Low priority for now. Upgrade to Capgo Capgo 12.128.2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Capgo before 12.128.2 contains an authentication bypass vulnerability in the account deletion endpoint that allows deletion without password re-authentication or secondary verification. Attackers can delete user accounts via session hijacking, CSRF attacks, or parameter tampering, resulting in unauthorized account deletion, data loss, and denial-of-service.

HighCVSS 7.0 · v4.0—No exploit Fix available

Published: Jun 30, 2026
Updated: Jul 1, 2026
EPSS: 0.5% · 45th percentile
CWE: CWE-306

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.0 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.5%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · VulnCheck: 7.0; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

Capgo Capgo
- 12.128.2not affected
- before 12.128.2affected · semver

Same product

capgo: all records

Other highest-scoring records for the same primary product.

CVE-2026-56223Capgo - Account Takeover via Cross-Domain SSO Email Assertion in provision-user
37Monitor
CVE-2026-56237Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation
37Monitor
CVE-2026-56324Capgo - Rate Limit Bypass via User-Controlled device_id Parameter
35Monitor

Published before and after this one in the same product

← EarlierCVE-2026-56247Jun 30, 2026 · Capgo - Privilege Escalation via Cross-Scope RBAC Role Assignment
34Monitor
← EarlierCVE-2026-56249Jun 30, 2026 · Capgo - Unauthorized Channel Overwrite and Ownership Takeover via POST /channel Name Collision
28Monitor
Later →CVE-2026-56300Jun 30, 2026 · Capgo - Unauthenticated API Key Validity and Permission Oracle via RPC Functions
34Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Capgo Capgo	12.128.2	Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-5386818 days apartCapgo < 12.128.2 - Denial of Service via Unverified Email Account Registration and Deletion
34Monitor
CVE-2026-563218 days apartCapgo - Missing Authentication Middleware on GET /private/role_bindings Endpoint
27Monitor
CVE-2026-562999 days apartCapgo - Denial of Service via Unauthenticated OPTIONS Request to /build/upload Endpoint
27Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2026-562330 days apartCapgo - SSRF and Privilege Escalation via Path Traversal in Builder Upload Proxy
34Monitor
CVE-2026-5622710 days apartCapgo - Server-Side Request Forgery via Webhook URL Validation
21Monitor
CVE-2026-5628112 days apartCapgo - SQL Injection via Unvalidated limit Parameter in Admin Stats Endpoint
20Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: A
Scope: X

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/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

nvd-secondary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1// Added for the support team
2app.post("/maintenance/reset", resetDevice);

Fixed

1if (config.maintenanceEnabled) {
2  app.post(
3    "/maintenance/reset",
4    requireSession, requireRole("admin"), resetDevice
5  );
6}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

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Change log

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/Cap-go/capgo/security/advisories/GHSA-cjvr-jxp5-4p9x

Show all references (1 more)

www.vulncheck.com/advisories/capgo-account-deletion-without-password-confirmation

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records