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BIT-jenkins-2023-27899

Affected: Bitnami: jenkins

Jenkins LTS 2.375.3 and earlier creates a temporary file in the default temporary directory with the default permissions for newly created files when uploading a plugin for installation, potentially allowing attackers with access to the Jenkins controller file system to read and write the file before it is used, potentially resulting in arbitrary code execution.

EUVD-2026-219962

fkie_cve-2023-27899

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier creates a temporary file in the default temporary directory with the default permissions for newly created files when uploading a plugin for installation, potentially allowing attackers with access to the Jenkins controller file system to read and write the file before it is used, potentially resulting in arbitrary code execution.

GHSA-hf9h-vv4m-2f33 — Incorrect Authorization in Jenkins Core

Affected: Maven: org.jenkins-ci.main:jenkins-core

Jenkins creates a temporary file when a plugin is uploaded from an administrator’s computer.

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier, and prior to LTS 2.387.1 creates this temporary file in the system temporary directory with the default permissions for newly created files.

If these permissions are overly permissive, they may allow attackers with access to the Jenkins controller file system to read and write the file before it is installed in Jenkins, potentially resulting in arbitrary code execution.

This vulnerability only affects operating systems using a shared temporary directory for all users (typically Linux). Additionally, the default permissions for newly created files generally only allows attackers to read the temporary file. Jenkins 2.394, LTS 2.375.4, and LTS 2.387.1 creates the temporary file with more restrictive permissions.

As a workaround, you can set a different path as your default temporary directory using the Java system property java.io.tmpdir, if you’re concerned about this issue but unable to immediately update Jenkins.

gsd-2023-27899

RHSA-2023:1655 — Red Hat Security Advisory: OpenShift Container Platform 4.10.56 security update

kube-apiserver: Aggregated API server can cause clients to be redirected (SSRF) spring-security-oauth2-client: Privilege Escalation in spring-security-oauth2-client spring-security: Authorization rules can be bypassed via forward or include dispatcher types in Spring Security apache-commons-text: variable interpolation RCE jenkins-2-plugins/script-security: Sandbox bypass vulnerability in Script Security Plugin haproxy: request smuggling attack in HTTP/1 header parsing Jenkins: XSS vulnerability in plugin manager Jenkins: Temporary plugin file created with insecure permissions Jenkins: Temporary file parameter created with insecure permissions Jenkins: Information disclosure through error stack traces related to agents

WID-SEC-W-2023-0609 — Jenkins: Mehrere Schwachstellen

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Jenkins ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Cross-Site-Scripting-Angriff durchzuführen und Code auszuführen