CVE-2026-56248Public exploitNetwork attack vector

Unauthenticated service interruption via costly RLS planning

Published Jun 23, 2026 · Updated Jun 23, 2026

Uncontrolled resource consumption in Capgo before 12.128.12 allows remote attackers to interrupt service through its PostgREST API. The public.audit_logs RLS policy lets an unfiltered query using the public anonymous key enter costly PostgreSQL planning before access rejection, ending in a statement timeout. Concurrent requests exhaust database resources and make unrelated endpoints return HTTP 500 responses without authentication.

CVSS severity8.7
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Capgo before 12.128.12 allows remote attackers to interrupt service through its PostgREST API. The public.audit_logs RLS policy lets an unfiltered query using the public anonymous key enter costly PostgreSQL planning before access rejection, ending in a statement timeout. Concurrent requests exhaust database resources and make unrelated endpoints return HTTP 500 responses without authentication.

The record

CVE
CVE-2026-56248
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
Capgo
Product
Capgo
Classifications
CWE-770, CWE-400, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <12.128.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Capgo · Capgoversion=0 <12.128.12

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CWE-400Uncontrolled Resource Consumption
T1499.003Application Exhaustion Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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