Jenkins RCE Vulnerability CVE-2026-53435 Now Under Active Exploitation
ID: e5dc4eed-f6ca-5ad5-b9c8-8eb21130bed1
STIX ID: report--e5dc4eed-f6ca-5ad5-b9c8-8eb21130bed1
Feed Name: securityonline.info
Threat Score
A critical Jenkins deserialization vulnerability (CVE-2026-53435, CVSS 8.8) enables attackers to run arbitrary code on affected Jenkins controllers, impersonate users, access the Script Console, and read sensitive files; active exploitation has been observed in honeypots, and the advisory urges immediate patching or network restrictions and account/console audits.
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