CVE-2025-62710

Published Oct 22, 2025

Last updated 14 days ago

CVSS medium 5.9
lms

Overview

Description
Sakai is a Collaboration and Learning Environment. Prior to versions 23.5 and 25.0, EncryptionUtilityServiceImpl initialized an AES256TextEncryptor password (serverSecretKey) using RandomStringUtils with the default java.util.Random. java.util.Random is a non‑cryptographic PRNG and can be predicted from limited state/seed information (e.g., start time window), substantially reducing the effective search space of the generated key. An attacker who can obtain ciphertexts (e.g., exported or at‑rest strings protected by this service) and approximate the PRNG seed can feasibly reconstruct the serverSecretKey and decrypt affected data. SAK-49866 is patched in Sakai 23.5, 25.0, and trunk.
Source
security-advisories@github.com
NVD status
Analyzed
Products
sakai

Risk scores

CVSS 3.1

Type
Primary
Base score
5.9
Impact score
3.6
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity
MEDIUM

Weaknesses

security-advisories@github.com
CWE-337

Social media

Hype score
Not currently trending

  1. CVE-2025-62710 Cryptographic Key Generation Vulnerability in Sakai Colla... https://t.co/cKQSp4pPa0 Don't wait vulnerability scanning results: https://t.co/oh1APvMMnd

    @VulmonFeeds

    23 Oct 2025

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  2. CVE-2025-62710 Sakai is a Collaboration and Learning Environment. Prior to versions 23.5 and 25.0, EncryptionUtilityServiceImpl initialized an AES256TextEncryptor password (serverSe… https://t.co/Cr7vZiDpBc

    @CVEnew

    23 Oct 2025

    282 Impressions

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Configurations

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References

Sources include official advisories and independent security research.