{"id":"RHLW-2026-196ac03ad2d3efd8","summary":"Lightwell Security Advisory: logback-classic 1.5.13.rhlw-00004","details":"Red Hat Lightwell has released ch.qos.logback:logback-classic 1.5.13.rhlw-00004 with a backported security fix.\n\nCVE-2026-104721: Path-traversal vulnerability in QOS.CH Sarl Logback-classic on Java (logback-classic module) allows path-traversal vulnerability. More specifically, an \nMDC-based discriminator value flows unsanitized into a nested \nFileAppender path, letting an attacker who influences that MDC value \n(e.g. via an HTTP header)\n create and append log files outside the intended directory. \n\n\nThis issue affects Logback-classic: from 0.9.14 through 1.6.4.  This vulnerability is similar to CVE-2026-19880 but involves other attack techniques.\n\nThis patched artifact is a drop-in replacement for ch.qos.logback:logback-classic 1.5.13 from Maven Central.","modified":"2026-11-06T19:30:03.708004522Z","published":"2026-11-05T14:20:47Z","upstream":["CVE-2026-104721"],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104721"}],"affected":[{"package":{"name":"ch.qos.logback:logback-classic","ecosystem":"Red Hat Lightwell:Maven","purl":"pkg:maven/ch.qos.logback/logback-classic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.13.rhlw-00004"}]}],"versions":["0.2.5","0.3","0.5","0.6","0.7","0.7.1","0.8","0.8.1","0.9","0.9.1","0.9.10","0.9.11","0.9.12","0.9.13","0.9.14","0.9.15","0.9.16","0.9.17","0.9.18","0.9.19","0.9.2","0.9.20","0.9.21","0.9.22","0.9.23","0.9.24","0.9.25","0.9.26","0.9.27","0.9.28","0.9.29","0.9.3","0.9.30","0.9.4","0.9.5","0.9.6","0.9.7","0.9.8","0.9.9","1.0.0","1.0.1","1.0.10","1.0.11","1.0.12","1.0.13","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","1.1.0","1.1.1","1.1.10","1.1.11","1.1.2","1.1.3","1.1.4","1.1.5","1.1.6","1.1.7","1.1.8","1.1.9","1.2.0","1.2.1","1.2.10","1.2.11","1.2.12","1.2.13","1.2.2","1.2.3","1.2.4","1.2.4-groovyless","1.2.5","1.2.6","1.2.7","1.2.8","1.2.9","1.3.0","1.3.0-alpha0","1.3.0-alpha1","1.3.0-alpha10","1.3.0-alpha11","1.3.0-alpha12","1.3.0-alpha13","1.3.0-alpha14","1.3.0-alpha15","1.3.0-alpha16","1.3.0-alpha2","1.3.0-alpha3","1.3.0-alpha4","1.3.0-alpha5","1.3.0-alpha6","1.3.0-alpha7","1.3.0-alpha8","1.3.0-alpha9","1.3.0-beta0","1.3.1","1.3.10","1.3.11","1.3.12","1.3.13","1.3.14","1.3.15","1.3.16","1.3.2","1.3.3","1.3.4","1.3.5","1.3.6","1.3.7","1.3.8","1.3.9","1.4.0","1.4.1","1.4.10","1.4.11","1.4.12","1.4.13","1.4.14","1.4.2","1.4.3","1.4.4","1.4.5","1.4.6","1.4.7","1.4.8","1.4.9","1.5.0","1.5.1","1.5.10","1.5.11","1.5.12","1.5.13","1.5.2","1.5.3","1.5.4","1.5.5","1.5.6","1.5.7","1.5.8","1.5.9"],"database_specific":{"source":"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-196ac03ad2d3efd8.json","lightwell":{"remediated_version":"1.5.13.rhlw-00004","repository_url":"https://packages.redhat.com/lightwell/java/remediated/","backport_base_version":"1.5.13"}}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:X/V:X/RE:M/U:Green"}],"credits":[{"name":"Red Hat Lightwell","type":"REMEDIATION_DEVELOPER"}]}