High

Jervis Has Weak Random for Timing Attack Mitigation

  • Disclosed: 13.01.2026
  • Updated: 11.10.2026 12:22

Vulnerability

https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L593-L594

Uses java.util.Random() which is not cryptographically secure.

Impact

If an attacker can predict the random delays, they may still be able to perform timing attacks.

Patches

Jervis will use SecureRandom for timing randomization.

Upgrade to Jervis 2.2.

Workarounds

None

References

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) net.gleske:jervis < 2.2 2.2

References

CVSS score 5.9/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-330
Platform
Java / Kotlin (Maven)
Package
net.gleske:jervis
Disclosed
13.01.2026
Updated
11.10.2026 12:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-c9q6-g3hr-8gww - CC BY 4.0

Vulnerability history: net.gleske:jervis

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
7
First → latest
01.2026 01.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 6
  • Medium 1

Disclosures per year

  1. 2026: 7
  1. High · 7.5 CVE-2025-68931 < 2.2 2.2
  2. Medium · 5.3 CVE-2025-68925 < 2.2 2.2
  3. Jervis Has Weak Random for Timing Attack Mitigation this entry
    High · 5.9 CVE-2025-68704 < 2.2 2.2
  4. High · 7.5 CVE-2025-68703 < 2.2 2.2
  5. High · 7.5 CVE-2025-68702 < 2.2 2.2
  6. High · 7.5 CVE-2025-68701 < 2.2 2.2
  7. High · 7.5 CVE-2025-68698 < 2.2 2.2

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