What is CVE-2023-27901?

CVE-2023-27901 is a high-severity vulnerability in Jenkins, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-03-10.

How severe is CVE-2023-27901?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-27901 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Jenkins

CVE-2023-27901

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier uses the Apache Commons FileUpload library without specifying limits for the number of request parts introduced in version 1.5 for CVE-2023-24998 in org.kohsuke.stapler.RequestImpl, allowing attackers to trigger a denial of service.

Published 2023-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Jenkins
Jenkins Project — versions 2.394, 2.375.4, 2.387.1

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

speedyfriend67/Experiments

References

www.jenkins.io/security/advisory/2023-03-08/ (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-27901?: CVE-2023-27901 is a high-severity vulnerability in Jenkins, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-03-10.
How severe is CVE-2023-27901?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-27901 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.