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CVE-2026-70428 Jenkins

Affected softwareJenkins
Severity4.3 Medium CVSS 3.1
WeaknessPath traversal (CWE-22)
Published5 Aug 2026
Updated8 Sep 2026

Description

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal in file parameter names, allowing attackers with Item/Configure and Item/Build permission to write files to arbitrary locations on the controller file system.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.66% chance in 30 days

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Decided by A vulnerability class already blocked by an ARMR security rule
Finding Protected by Waratek's ARMR path-traversal security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-22: Path Traversal.

How to mitigate CVE-2026-70428

Apply the vendor's fix for Jenkins. Until you can, Waratek RASP blocks exploitation with its path traversal rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

Affected software and releases

Products and versions

1 product, 2 version entries
SourceVendorProductSchemeAffected versions
nvd jenkins jenkins generic < 2.568.2 · < 2.576

References

URLTags
https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3927 Vendor Advisory

Timeline

Published2026-08-05By the CVE Program.
NVD record modified2026-09-08NVD's own last-modified date for this record.