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: 2023-07-19 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-34034 is rated High Risk (72/100): CVSS Critical severity, with high exploitation likelihood (EPSS 49.29%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.38% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-34034

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-15 47.91% 49.29% +1.38%
2 2025-12-12 51.02% 47.91% -3.11%
3 2025-11-21 — 51.02% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-34034

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 5.2 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-34034

GitHub Security Advisory for CVE-2023-34034

GHSA-3h6f-g5f3-gc4w · Severity: critical · Ecosystem: maven — Access Control Bypass in Spring Security

OS Trackers for CVE-2023-34034

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2023-34034

Affected software / configurations for CVE-2023-34034

Vendor Product Version Raw CPE
vmware spring_security >= 5.6.0, < 5.6.12 cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*
vmware spring_security >= 5.7.0, < 5.7.10 cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*
vmware spring_security >= 5.8.0, < 5.8.5 cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*
vmware spring_security >= 6.0.0, < 6.0.5 cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*
vmware spring_security >= 6.1.0, < 6.1.2 cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*

References for CVE-2023-34034

cvelogic Threat Intelligence