CVE-2026-19429
CVE-2026-19429: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.5
Medium [CVE-2026-19429] Arbitrary file read via symlink target validation bypass
CVE-2026-19429Source published Source updated
Jenkins FilePath.untarFrom() does not validate symlink targets in extracted TAR archives, even in versions patched for CVE-2026-33001 and CVE-2026-70427. An authenticated attacker with job configuration privileges can include a malicious archive in a build step that creates workspace symlinks pointing to arbitrary files on the Jenkins controller. By reading the secrets directory, the attacker obtains the cryptographic keys used to sign remember-me cookies, forges a valid administrator session cookie without any admin interaction, and gains access to the Script Console for remote code execution. Jenkins 2.576 is additionally affected by a bypass of the CVE-2026-70427 blank-name check via Unicode zero-width characters (U+200B, U+200C, U+200D, U+2060, U+00AD), which Java's String.isBlank()…
- Affected products in this advisory
- OpenShift Developer Tools and Services
- Source-reported affected versions
- 2.576
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- Until an upstream fix is available, limit Item/Configure permission on Jenkins jobs to trusted administrators only, and avoid allowing untrusted or low-privileged users to configure or run jobs that extract tar archives. If untrusted users have held Item/Configure access, rotate Jenkins credentials and the controller master key as a precaution. Where possible, restrict network access to the Jenkins controller to trusted networks.
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