CVE-2026-55652Public exploitNetwork attack vector

Unauthenticated account takeover via spoofed source IP

Published Jul 15, 2026 · Updated Jul 15, 2026

Authentication bypass in WeKan before 9.46 allows remote attackers to obtain a full session for any existing account. The getRequestIp() helper in server/lib/headerLoginAuth.js accepts the leftmost X-Forwarded-For value before the socket peer and feeds it to the trusted-IP allowlist. Header login must be enabled and the application port reachable outside the trusted proxy; a forged allowlisted address and username then grant that account's privileges, including administrative control.

CVSS severity9.8
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in WeKan before 9.46 allows remote attackers to obtain a full session for any existing account. The getRequestIp() helper in server/lib/headerLoginAuth.js accepts the leftmost X-Forwarded-For value before the socket peer and feeds it to the trusted-IP allowlist. Header login must be enabled and the application port reachable outside the trusted proxy; a forged allowlisted address and username then grant that account's privileges, including administrative control.

The record

CVE
CVE-2026-55652
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
WeKan
Product
WeKan
Classifications
CWE-287, CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 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=< 9.46

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WeKan · WeKanversion=< 9.46

Published CVSS scores

9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

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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