CVE-2025-52899Network attack vector

Unauthenticated account enumeration via password-reset responses

Published Jul 29, 2025 · Updated Jul 29, 2025

User enumeration in Tuleap Community Edition before 16.9.99.1750843170 allows remote attackers to identify registered accounts. The lost-password handler returns observably different responses for submitted identifiers depending on whether an account exists. Tuleap Enterprise Edition before 16.8-4 and from 16.9 to before 16.9-2 is also affected; no authentication or user interaction is required, and only account membership is disclosed.

CVSS severity5.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

User enumeration in Tuleap Community Edition before 16.9.99.1750843170 allows remote attackers to identify registered accounts. The lost-password handler returns observably different responses for submitted identifiers depending on whether an account exists. Tuleap Enterprise Edition before 16.8-4 and from 16.9 to before 16.9-2 is also affected; no authentication or user interaction is required, and only account membership is disclosed.

The record

CVE
CVE-2025-52899
Published
Jul 29, 2025
Updated
Jul 29, 2025
Vendor
Enalean
Product
Tuleap
Classifications
CWE-204, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 2025Record 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=Tuleap Community Edition < 16.9.99.1750843170
  2. Affected versionversion=Tuleap Enterprise Edition < 16.8-4
  3. Affected versionversion=Tuleap Enterprise Edition >= 16.9, < 16.9-2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Enalean · Tuleapversion=Tuleap Community Edition < 16.9.99.1750843170; version=Tuleap Enterprise Edition < 16.8-4; version=Tuleap Enterprise Edition >= 16.9, < 16.9-2

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-204Observable Response Discrepancy
T1087Account Discovery

Public exploit references

No public exploit references are available in this record.

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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