Vulnerability in VMware Spring Security

CVE-2023-34034

Using "**" as a pattern in Spring Security configuration for WebFlux creates a mismatch in pattern matching between Spring Security and Spring WebFlux, and the potential for a security bypass.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.040 (90.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-34034: held from 0.040 to 0.040.

EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000

Affected products

  • VMware Spring Security
  • Spring Security — versions Spring Security 6.1.0, Spring Security 6.0.0, Spring Security 5.8.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-34034?
CVE-2023-34034 is a critical-severity vulnerability in VMware Spring Security, classified under Improper Preservation of Permissions. CVSS score: 9.1/10. Published 2023-07-19.
How severe is CVE-2023-34034?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2023-34034 known to be exploited?
9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.