Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-775g-4xr8-78h8
Advisory ID github_osv/GHSA-775g-4xr8-78h8
Aliases CVE-2026-41849
Summary Spring Framework Denial of Service via Integer Overflow in SpEL Expressions An integer overflow vulnerability exists in the evaluation logic of the Spring Expression Language (SpEL). An attacker can exploit this by supplying a specially crafted SpEL expression that triggers excessive resource consumption, resulting in a Denial of Service (DoS). Affected versions: Spring Framework 5.3.0 through 5.3.48.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-190 Integer Overflow or Wraparound
System Score Found at
cvssv3.1 7.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-775g-4xr8-78h8/GHSA-775g-4xr8-78h8.json
generic_textual HIGH
Reference id Reference type URL
https://github.com/spring-projects/spring-framework
cve-2026-41849 Other https://spring.io/security/cve-2026-41849
CVE-2026-41849 https://nvd.nist.gov/vuln/detail/CVE-2026-41849
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-775g-4xr8-78h8/GHSA-775g-4xr8-78h8.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-09T13:32:54Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/41xxx/CVE-2026-41849.json

Source Advisory: vulnrichment/CVE-2026-41849

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]