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CVE-2026-56282· NVD / CVE Program· CNA VulnCheck

Capgo - Information Disclosure via Unauthenticated /replication Endpoint

Noroxi assessment

Priority: Monitor (action score 27/100)

  • 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: 0.39% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • 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 information disclosure vulnerability in the unauthenticated /replication endpoint that exposes internal PostgreSQL replication telemetry including slot names and WAL LSN positions. Attackers can access this endpoint without authentication to retrieve sensitive infrastructure details such as replication slot names, confirmed_flush_lsn, restart_lsn values, and database error messages for reconnaissance purposes.

MediumCVSS 6.9 · v4.0—No exploit Fix available
Published
Jun 20, 2026
Updated
Jun 23, 2026
EPSS
0.3% · 32th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulnCheck
6.9
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:N/VC:L/VI:N/VA:N/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

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

—

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-2026-56237Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation
    37Monitor
  • CVE-2026-56223Capgo - Account Takeover via Cross-Domain SSO Email Assertion in provision-user
    37Monitor
  • CVE-2026-56324Capgo - Rate Limit Bypass via User-Controlled device_id Parameter
    35Monitor
  • CVE-2026-56238Capgo - Unauthenticated Information Disclosure via PostgREST global_stats Endpoint
    34Monitor
  • CVE-2026-56303Capgo - Unauthenticated API Key Metadata Disclosure via SECURITY DEFINER RPC Function
    34Monitor
  • CVE-2026-56305Capgo - Authentication Bypass in Password Change via Missing Current Password Validation
    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 / packageFixed versionSource
Capgo Capgo12.128.2Vendor (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.

Variant candidates

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

  • CVE-2026-562421 days apartCapgo - Unauthenticated API Key Validity Oracle and User Identity Disclosure via get_identity_apikey_only RPC
    34Monitor
  • CVE-2026-562141 days apartCapgo - Unauthenticated Organization Enumeration and Billing Status Disclosure via Supabase RPC
    34Monitor
  • CVE-2026-563232 days apartCapgo - Unauthenticated Channel Enumeration and App Oracle via GET /channel_self
    34Monitor
  • CVE-2026-563223 days apartCapgo - Information Disclosure via Unauthenticated /updates defaultChannel Parameter
    34Monitor
  • CVE-2026-5630010 days apartCapgo - Unauthenticated API Key Validity and Permission Oracle via RPC Functions
    34Monitor
  • CVE-2026-5630321 days apartCapgo - Unauthenticated API Key Metadata Disclosure via SECURITY DEFINER RPC Function
    34Monitor

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-2026-5623310 days apartCapgo - SSRF and Privilege Escalation via Path Traversal in Builder Upload Proxy
    34Monitor
  • CVE-2026-562270 days apartCapgo - Server-Side Request Forgery via Webhook URL Validation
    21Monitor
  • CVE-2026-5628122 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 user action 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
None
Scope
X

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

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

nvd-secondary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

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

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

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

Change log

  1. Fix✗ → ✓

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

References

Show all references (1 more)

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

All records