CVE-2025-4894Network attack vector

Protected-data disclosure via fixed 1024-bit RSA keys

Published May 18, 2025 · Updated May 19, 2025

Weak RSA key generation in Calmkart Django-sso-server 057247929a94ffc358788a37ab99e391379a4d15 allows remote attackers to read protected data. The gen_rsa_keys function in common/crypto.py calls RSA.generate with a fixed 1,024-bit key size and exports the resulting weak key pair. Exploitation requires no account or user action, but demands difficult remote cryptanalysis and affects confidentiality only.

CVSS severity6.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak RSA key generation in Calmkart Django-sso-server 057247929a94ffc358788a37ab99e391379a4d15 allows remote attackers to read protected data. The gen_rsa_keys function in common/crypto.py calls RSA.generate with a fixed 1,024-bit key size and exports the resulting weak key pair. Exploitation requires no account or user action, but demands difficult remote cryptanalysis and affects confidentiality only.

The record

CVE
CVE-2025-4894
Published
May 18, 2025
Updated
May 19, 2025
Vendor
Calmkart
Product
Django-sso-server
Classifications
CWE-326, CWE-310
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 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=057247929a94ffc358788a37ab99e391379a4d15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Calmkart · Django-sso-serverversion=057247929a94ffc358788a37ab99e391379a4d15

Published CVSS scores

3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N
5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
6.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-326Inadequate Encryption Strength
CWE-310Cryptographic Issues

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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