CVE-2024-13269Network attack vector

Cached-page disclosure via predictable role-bin hashes

Published Jan 9, 2025 · Updated Jan 30, 2025

Access bypass in Drupal Advanced Varnish before 4.0.11 allows remote attackers to read role-restricted cached pages by guessing bin names. The module derives Varnish role-bin hashes predictably from role names when hashing noise is unset, and a client-controlled cookie selects the bin. Exposure requires authenticated-user caching and missing hashing noise; successful requests disclose cached content without changing it.

CVSS severity5.3
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access bypass in Drupal Advanced Varnish before 4.0.11 allows remote attackers to read role-restricted cached pages by guessing bin names. The module derives Varnish role-bin hashes predictably from role names when hashing noise is unset, and a client-controlled cookie selects the bin. Exposure requires authenticated-user caching and missing hashing noise; successful requests disclose cached content without changing it.

The record

CVE
CVE-2024-13269
Published
Jan 9, 2025
Updated
Jan 30, 2025
Vendor
OAuth.js
Product
Advanced Varnish
Classifications
CWE-201, CAPEC-87
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 30, 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=0.0.0 <4.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OAuth.js · Advanced Varnishversion=0.0.0 <4.0.11

Published CVSS scores

5.3CISA-ADPCVSS: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-201Insertion of Sensitive Information Into Sent Data
CAPEC-87Forceful Browsing

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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