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CVE-2024-12798VulnerabilityPublished Updated

JaninoEventEvaluator by QOS.CH logback-core upto including · ACE Vulnerability

Affects logbackSource GCVE Database

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Not known to be exploited · CVSS 5.9 Medium.

Data as of 12 Nov 2026, 18:50 UTC

CVSS 4.0 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/RE:L/U:Clear

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Dec 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 24.04 LTSlogbackpkg:deb/ubuntu/logback?arch=source&distro=nobleOther threatsAffected
  • =1:1.2.11-3
  • =1:1.2.11-4
  • =1:1.2.11-5
Fixed in–
Ubuntu 22.04 LTSlogbackpkg:deb/ubuntu/logback?arch=source&distro=jammyOther threatsAffected
  • 1:1.2.3-6 – 1:1.2.10-1
5 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSlogbackpkg:deb/ubuntu/logback?arch=source&distro=esm-apps/focalOther threatsAffected
  • =1:1.2.3-5
  • =1:1.2.3-5ubuntu0.1~esm1
Fixed in–
Ubuntu Pro 18.04 LTSlogbackpkg:deb/ubuntu/logback?arch=source&distro=esm-apps/bionicOther threatsAffected
  • 1:1.1.9-4 – 1:1.2.3-2ubuntu1~18.04.1+esm1
5 affected builds
Fixed in–
Ubuntu Pro 16.04 LTSlogbackpkg:deb/ubuntu/logback?arch=source&distro=esm-apps-legacy/xenialOther threatsAffected
  • =1:1.1.3-2
  • =1:1.1.3-2ubuntu0.1~esm1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

ACE vulnerability in JaninoEventEvaluator by QOS.CH logback-core upto including version 0.1 to 1.3.14 and 1.4.0 to 1.5.12 in Java applications allows attacker to execute arbitrary code by compromising an existing logback configuration file or by injecting an environment variable before program execution. Malicious logback configuration files can allow the attacker to execute arbitrary code using the JaninoEventEvaluator extension. A successful attack requires the user to have write access to a configuration file. Alternatively, the attacker could inject a malicious environment variable pointing to a malicious configuration file. In both cases, the attack requires existing privilege.

References

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