1.8

CVE-2026-1225: qos.ch sarl logback-core Improper Input Validation

CVSS: 1.8v4.0LowDeferred
AliasesUBUNTU-CVE-2026-1225DEBIAN-CVE-2026-1225CGA-24h9-rq9c-jhmp
Published 22-01-2026Last modified 22-01-2026
Open JSON

Vulnerability summary

CVE-2026-1225 is a low (CVSS 1.8) Improper Input Validation vulnerability in qos.ch sarl logback-core. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Overall risk
7/100
0100
Minimal · default modelHow is this calculated?
CVSS score
1.8/10
010
Low · v4.0 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-MPPP-RHVC-R98W

Timeline

  1. 22-01-2026
    PublishedVulnerability first disclosed.
  2. 22-01-2026
    Last modifiedVulnerability information updated.

Description

ACE vulnerability in configuration file processing by QOS.CH logback-core up to and including version 1.5.24 in Java applications, allows an attacker to instantiate classes already present on the class path by compromising an existing logback configuration file. The instantiation of a potentially malicious Java class requires that said class is present on the user's class-path. In addition, the attacker must have write access to a configuration file. However, after successful instantiation, the instance is very likely to be discarded with no further ado.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard127 products
  • akhq< 0.26.0-r7
  • apache-nifi< 2.7.2-r5
  • apache-nifi-registry< 2.7.2-r3
  • apache-nifi-registry-toolkit< 2.7.2-r3
  • cassandra-4.0All versions (No fix recorded)
Wolfi68 products
  • akhq< 0.26.0-r7
  • apache-nifi< 2.7.2-r5
  • apache-nifi-registry< 2.7.2-r3
  • apache-nifi-registry-toolkit< 2.7.2-r3
  • cassandra-4.1All versions (No fix recorded)
Ch.qos.logback1 product
  • logback-core< 1.5.25
Debian1 product
  • logbackAll versions (No fix recorded) | < 1:1.6.3-1
Opensuse1 product
  • logback&distro=openSUSE Leap 15.6< 1.2.13-150200.3.16.1
Qos.ch sarl1 product
Ubuntu1 product
  • logbackAll versions (No fix recorded)

7 vendors · 200 products · Showing 200 of 201. Use Open JSON for the complete list.

References

11 links
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