CVE-2026-6907Network attack vector

Private data disclosure via Vary wildcard caching

Published May 5, 2026 · Updated May 5, 2026

Information disclosure in Django 5.2 before 5.2.14 and 6.0 before 6.0.5 allows remote attackers to receive private cached data. UpdateCacheMiddleware fails to stop caching when a response's Vary header contains an asterisk, so user-specific response content enters a shared cache. Exposure requires the cache middleware and a Vary: * response; a later request can then receive content cached from another response.

CVSS severity2.3
Low
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Django 5.2 before 5.2.14 and 6.0 before 6.0.5 allows remote attackers to receive private cached data. UpdateCacheMiddleware fails to stop caching when a response's Vary header contains an asterisk, so user-specific response content enters a shared cache. Exposure requires the cache middleware and a Vary: * response; a later request can then receive content cached from another response.

The record

CVE
CVE-2026-6907
Published
May 5, 2026
Updated
May 5, 2026
Vendor
Django Software Foundation
Product
Django
Classifications
CWE-524, CAPEC-204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 2026CVE publishedPublication date reported by the CVE source.
  2. May 5, 2026Record 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=5.2 <5.2.14
  2. Affected versionversion=6.0 <6.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Django Software Foundation · Djangoversion=5.2 <5.2.14; version=6.0 <6.0.5

Published CVSS scores

2.3Django Software FoundationCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.3Django Software FoundationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-524Use of Cache Containing Sensitive Information
CAPEC-204Lifting Sensitive Data Embedded in Cache

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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