Deserialization in Jenkins

CVE-2015-8103

The Jenkins CLI subsystem in Jenkins before 1.638 and LTS before 1.625.2 allows remote attackers to execute arbitrary code via a crafted serialized Java object, related to a problematic webapps/ROOT/WEB-INF/lib/commons-collections-*.jar fi…

Vulnerability class: Insecure Deserialization

EPSS: 0.863 (99.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2015-8103?
CVE-2015-8103 is a critical-severity vulnerability in Jenkins, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2015-11-25.
How severe is CVE-2015-8103?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2015-8103 known to be exploited?
70 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.