High

Spring Framework Algorithmic Denial of Service via SpEL Expressions

  • Disclosed: 09.06.2026
  • Updated: 11.10.2026 13:20

Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions are vulnerable to an Algorithmic Denial of Service (DoS). By providing a specially crafted expression, an attacker can trigger excessive resource consumption during evaluation, leading to application degradation or unavailability.

Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.springframework:spring-expression >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-407
Platform
Java / Kotlin (Maven)
Package
org.springframework:spring-expression
Disclosed
09.06.2026
Updated
11.10.2026 13:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-r5w3-xv2f-j59q - CC BY 4.0

Vulnerability history: org.springframework:spring-expression

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
04.2022 06.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • High 3
  • Medium 4
  • Low 1

Disclosures per year

  1. 2022: 1
  2. 2023: 2
  3. 2024: 1
  4. 2025: 0
  5. 2026: 4
  1. Medium · 5.3 CVE-2026-41851 >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19
  2. Spring Framework Algorithmic Denial of Service via SpEL Expressions this entry
    High · 7.5 CVE-2026-41850 >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19
  3. Low · 3.7 CVE-2026-41852 >= 7.0.0, < 7.0.8, >= 6.2.0, < 6.2.19, >= 6.1.0, <= 6.1.21, <= 5.3.39 7.0.8, 6.2.19
  4. Medium · 4.3 CVE-2024-38808 < 5.3.39 5.3.39
  5. High · 7.5 CVE-2023-20863 >= 6.0.0, < 6.0.8, >= 5.3.0, < 5.3.27, < 5.2.24.RELEASE 6.0.8, 5.3.27, 5.2.24.RELEASE
  6. Medium · 6.5 CVE-2023-20861 >= 6.0.0, < 6.0.7, >= 5.3.0, < 5.3.26, < 5.2.23.RELEASE 6.0.7, 5.3.26, 5.2.23.RELEASE
  7. Medium · 6.5 CVE-2022-22950 >= 5.3.0, < 5.3.17, < 5.2.20.RELEASE 5.3.17, 5.2.20.RELEASE

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