cve.bz

CVE-2019-11808

3.7 lowEPSS 1.3%

Low (3.7) in ratpack project ratpack. EPSS 1.3% chance of exploitation in the next 30 days. Fixed in io.ratpack:ratpack-session 1.6.1.

Ratpack versions before 1.6.1 generate a session ID using a cryptographically weak PRNG in the JDK's ThreadLocalRandom. This means that if an attacker can determine a small window for the server start time and obtain a session ID value, they can theoretically determine the sequence of session IDs.

Severity

CVSS 3.0

3.7 low
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
CWE
CWE-338
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-54mg-vgrp-mwx9Mavenio.ratpack:ratpack-session<1.6.11.6.1
GHSA-54mg-vgrp-mwx9Mavenio.ratpack:ratpack-java<1.6.11.6.1
GHSA-54mg-vgrp-mwx9Mavenio.ratpack:ratpack-groovy<1.6.11.6.1

References

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