CVE-2024-21644Public exploitNetwork attack vector

Flask secret disclosure via unrestricted template rendering

Published Jan 8, 2024 · Updated Jun 17, 2025

Improper access control in pyLoad before 0.5.0b3.dev77 allows remote attackers to read Flask configuration via an unauthenticated URL. The unrestricted /render/path:filename route renders info.html without the normal info handler, leaving Flask's global config object bound to the template's config variable. Network access to the web interface is sufficient, and the response discloses SECRET_KEY and other configuration data without changing service state.

CVSS severity7.5
High
EPSS probability42.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in pyLoad before 0.5.0b3.dev77 allows remote attackers to read Flask configuration via an unauthenticated URL. The unrestricted /render/path:filename route renders info.html without the normal info handler, leaving Flask's global config object bound to the template's config variable. Network access to the web interface is sufficient, and the response discloses SECRET_KEY and other configuration data without changing service state.

The record

CVE
CVE-2024-21644
Published
Jan 8, 2024
Updated
Jun 17, 2025
Vendor
pyLoad
Product
pyLoad
Classifications
CWE-284
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 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?

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

  1. Affected versionversion=< 0.5.0b3.dev77

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

pyLoad · pyLoadversion=< 0.5.0b3.dev77

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control

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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