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CVE-2026-100677 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

stoatchat before 0.15.5 contains an account enumeration vulnerability in the login endpoint that exposes source file locations in error responses. Unauthenticated attackers can distinguish between registered and unregistered email addresses by comparing error location fields returned from POST /api/auth/session/login requests.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-h44h-xx2j-hp56	CISA-ADP	AdvisoryExploitRemedyVendor
https://github.com/stoatchat/stoatchat/security/advisories/GHSA-h44h-xx2j-hp56	[email protected]	AdvisoryExploitRemedyVendor
https://www.vulncheck.com/advisories/stoatchat-before-0.15.5-account-enumeration-via-error-location	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-209	Generation of Error Message Containing Sensitive Information	[email protected]

Affected Products

Product	Versions
stoatchat	<= 0.15.4 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 0.15.5moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 30, 2026	CVE Modified	CISA-ADP
Sep 26, 2026	New CVE Received	[email protected]