CVE-2024-38827 | Spring Security Authorization Bypass for Case Sensitive Comparisons

The usage of String.toLowerCase() and String.toUpperCase() has some Locale dependent exceptions that could potentially result in authorization rules not working properly.

Published: 2024-12-02 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-38827 is rated Moderate Risk (40.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.40%). Review affected assets and schedule 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-2024-38827

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 2026-04-23 0.31% 0.40% +0.09%
2 2025-12-30 0.41% 0.31% -0.10%
3 2025-12-28 — 0.41% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-38827

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 2.5 [email protected]

Weakness enumeration for CVE-2024-38827

GitHub Security Advisory for CVE-2024-38827

GHSA-q3v6-hm2v-pw99 · Severity: medium · Ecosystem: maven — Spring Framework has Authorization Bypass for Case Sensitive Comparisons

OS Trackers for CVE-2024-38827

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2024-38827

Affected software / configurations for CVE-2024-38827

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2024-38827

cvelogic Threat Intelligence