CVE-2026-82262Public exploitNetwork attack vector

Private-network data disclosure via unvalidated webhook URL

Published Aug 28, 2026 · Updated Aug 28, 2026

Server-side request forgery in Logto 1.42.0 and earlier allows remote authenticated users to read private-network response bodies. The webhook test handler passes config.url directly to ky.post without address validation, then returns the upstream body in API errors. A tenant administrator with a Management API token can reach it, exposing data from loopback, private-range, or cloud-metadata services.

CVSS severity8.2
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Logto 1.42.0 and earlier allows remote authenticated users to read private-network response bodies. The webhook test handler passes config.url directly to ky.post without address validation, then returns the upstream body in API errors. A tenant administrator with a Management API token can reach it, exposing data from loopback, private-range, or cloud-metadata services.

The record

CVE
CVE-2026-82262
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
Logto
Product
Logto
Classifications
CWE-918, T1552.005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <=1.42.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Logto · Logtoversion=0 <=1.42.0

Published CVSS scores

8.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
6.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Cloud Instance Metadata API

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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