onyx

onyx --cves cve-2026-53435

CVE-2026-53435

HIGHKEVPOCJenkins
score
2.9
cvss
8.8
epss
2.2%
published
2026-06-10
kev added
2026-06-15
first seen

Jenkins <= 2.567 and LTS <= 2.555.2 contains an insecure deserialization vulnerability caused by deserializing attacker-controlled config.xml, letting attackers impersonate users, execute code, and read files, exploit requires crafted config.xml submission.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2026-06-10 — PublishedP2026-06-15 — Added to CISA KEVK2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score 2.92.9epss2026-09-22: epss 53.1%2026-09-23: epss 53.1%2026-09-24: epss 2.2%2026-09-25: epss 2.2%2026-09-26: epss 2.2%2026-09-27: epss 2.2%2026-09-29: epss 2.2%2026-09-30: epss 2.2%2026-10-01: epss 2.2%2026-10-02: epss 2.2%2026-10-03: epss 2.2%2026-10-04: epss 2.2%2026-10-05: epss 2.2%2026-10-06: epss 2.2%2026-10-07: epss 2.2%2026-10-08: epss 2.2%2026-10-09: epss 2.2%2026-10-10: epss 2.2%2026-10-11: epss 2.2%2026-10-12: epss 2.2%2026-10-13: epss 2.2%2026-10-14: epss 2.2%2026-10-15: epss 2.2%2026-10-16: epss 2.2%2026-10-18: epss 2.2%2026-10-19: epss 2.2%2026-10-20: epss 2.2%2026-10-21: epss 2.2%2.2%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Added to CISA KEV
  3. Tracked by Onyx
  4. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-502

References 16