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CVE-2019-11808

No known exploitation. EPSS puts it in the 71st percentile. Fixed in 1.6.1.

CVSS 3.03.7LowEPSS percentile71st1.3% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix1.6.1Upgrade to this build

Published Updated Sources: CVE.org, NVD, GitHub

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Maven io.ratpack:ratpack-sessionAffected: < 1.6.1Upgrade to: 1.6.1Stated by: GitHub advisory
  • Maven io.ratpack:ratpack-javaAffected: < 1.6.1Upgrade to: 1.6.1Stated by: GitHub advisory
  • Maven io.ratpack:ratpack-groovyAffected: < 1.6.1Upgrade to: 1.6.1Stated by: GitHub advisory
  • Ratpack Project RatpackAffected: < 1.6.1Upgrade to: 1.6.1Stated by: NVD

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

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.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS71st
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

1.3% chance of exploitation activity in the next 30 days, which ranks it in the 71st percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

4 events over 2025 days, from the signal feeds we watch.

  1. Patch availablerecord updated
  2. Publishedweakness classified

Affected products

And 1 more affected product. See all after sign-in

Technical detail

CVSS 3.0 vector

Open in the CVSS calculator

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Scored 3.7 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality LowSome restricted information is disclosed, but limited in scope
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

Sources

References in the record

And 1 more reference. See all after sign-in

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