CVE-2026-19429 - Jenkins Project Jenkins - Symlink Target Validation Bypass Arbitrary File Read

CVE-2026-19429 - Jenkins Project Jenkins - Symlink Target Validation Bypass Arbitrary File Read

https://cvefeed.io/rssfeed/latest.atom / Mon, 08/10/2026 - 16:25
CVE ID :CVE-2026-19429
Published : Aug. 10, 2026, 12:07 p.m. | 1 hour, 21 minutes ago
Description :An incomplete patch for CVE-2026-33001 in Jenkins Project Jenkins through LTS 2.555.3 allows an authenticated remote attacker with Item/Configure permission to read arbitrary files on the Jenkins controller filesystem via a crafted tar archive. The CVE-2026-33001 security update validates symlink destinations during tar extraction in FilePath.java but does not validate symlink targets; a symlink whose location is inside the workspace can still point to arbitrary paths outside it, enabling disclosure of any file readable by the Jenkins process user, including secrets/master.key, credentials.xml, and other sensitive configuration files.
Severity: 6.5 | MEDIUM
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.