CVE-2025-49653Public exploitNetwork attack vector

Account takeover via readable session credential file

Published Jun 9, 2025 · Updated Jun 11, 2025

Sensitive information exposure in Lablup Backend.AI 25.3.3 and earlier allows remote authenticated users to retrieve session credentials. When it starts an interactive session, the Agent writes the user's email address, access key, and session settings to /home/config/environ.txt, which the session's default user can read. Access to an interactive session is required; the disclosed access key permits actions as the session owner and enables account takeover.

CVSS severity8.0
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information exposure in Lablup Backend.AI 25.3.3 and earlier allows remote authenticated users to retrieve session credentials. When it starts an interactive session, the Agent writes the user's email address, access key, and session settings to /home/config/environ.txt, which the session's default user can read. Access to an interactive session is required; the disclosed access key permits actions as the session owner and enables account takeover.

The record

CVE
CVE-2025-49653
Published
Jun 9, 2025
Updated
Jun 11, 2025
Vendor
Lablup
Product
Backend.AI
Classifications
CWE-200, CAPEC-116, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Lablup · Backend.AIversion=*

Published CVSS scores

8.0HiddenLayerCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CAPEC-116Excavation
T1552.001Unsecured Credentials: Credentials In Files

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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