CVE-2026-6611Public exploitNetwork attack vector

Authentication bypass via hard-coded upload signing key

Published Apr 20, 2026 · Updated Apr 20, 2026

Hard-coded cryptographic key in liangliangyy DjangoBlog 2.1.0 allows remote attackers to bypass upload authentication. The SECRET_KEY fallback in djangoblog/settings.py is constant, and the CSRF-exempt upload view derives its sole HMAC signature from that value. Anyone with access to the public source can compute the accepted signature and submit a file without an account; the published demonstration reports HTTP 200 for the upload.

CVSS severity3.1
Low
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded cryptographic key in liangliangyy DjangoBlog 2.1.0 allows remote attackers to bypass upload authentication. The SECRET_KEY fallback in djangoblog/settings.py is constant, and the CSRF-exempt upload view derives its sole HMAC signature from that value. Anyone with access to the public source can compute the accepted signature and submit a file without an account; the published demonstration reports HTTP 200 for the upload.

The record

CVE
CVE-2026-6611
Published
Apr 20, 2026
Updated
Apr 20, 2026
Vendor
liangliangyy
Product
DjangoBlog
Classifications
CWE-320, CWE-321, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 20, 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=2.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

liangliangyy · DjangoBlogversion=2.1.0

Published CVSS scores

1.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.1VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
2.6VulDBAV:N/AC:H/Au:N/C:P/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-320Key Management Errors
CWE-321Use of Hard-coded Cryptographic Key
T1552.001Credentials 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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