CVE•Published 2026-09-02•Modified 2026-09-11•0 articles on news•5 live references•NVD data

CVE-2026-84652Jenkins · Jenkins

Vulnerability data via NVD (ingested)

CVSS v3.1

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

EPSS percentile

Exploit Prediction Scoring System · top 71% of all CVEs

Weaknesses (CWE)

CWE-384Session Fixation

Description

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Jenkins does not rotate the session when a user is authenticated via the "remember me" cookie, allowing attackers able to serve content on the same site as Jenkins to set a known session cookie in the victim's browser, which after the victim authenticates via the "remember me" cookie, grants the attacker access to Jenkins as that user.

Timeline

Published 2026-09-02

Modified 2026-09-11

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag1,845 hosts

vuln:CVE-2026-84652

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Jenkins Jenkins"

All exposed Jenkins Jenkins instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Jenkins"

HTTP body or banner mentions "Jenkins" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-84652