Most recent entries from all

BIT-jenkins-2020-2103

Affected: Bitnami: jenkins

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier exposed session identifiers on a user's detail object in the whoAmI diagnostic page.

cnvd-2020-08121

EUVD-2026-35783

fkie_cve-2020-2103

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier exposed session identifiers on a user's detail object in the whoAmI diagnostic page.

GHSA-4jjj-cm7q-v6hr — Jenkins Diagnostic page exposed session cookies

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

Jenkins shows various technical details about the current user on the `/whoAmI` page. In [a previous fix](https://www.jenkins.io/security/advisory/2019-09-25/#SECURITY-1505), the `Cookie` header value containing the HTTP session ID was redacted. However, user metadata shown on this page could also include the HTTP session ID in Jenkins 2.218 and earlier, LTS 2.204.1 and earlier.

This allows attackers able to exploit a cross-site scripting vulnerability to obtain the HTTP session ID value from this page.

Jenkins 2.219, LTS 2.204.2 no longer prints out the affected user metadata that might contain the HTTP session ID.

Additionally, we also redact values of further authentication-related HTTP headers in addition to `Cookie` on this page as a hardening.

gsd-2020-2103

RHBA-2020:0402 — Red Hat Bug Fix Advisory: OpenShift Container Platform 3.11 bug fix update

jquery: Prototype pollution in object's prototype leading to denial of service, remote code execution, or property injection jenkins: Inbound TCP Agent Protocol/3 authentication bypass jenkins: UDP multicast/broadcast service amplification reflection attack jenkins: Non-constant time comparison of inbound TCP agent connection secret jenkins: Non-constant time HMAC comparison jenkins: Exposed session identifiers on user detail object in the whoAmI diagnostic page jenkins: Memory usage graphs accessible to anyone with Overall/Read jenkins: REST APIs vulnerable to clickjacking