High severity · published Aug 27, 2026
CVE-2026-47886
Spring Framework Denial of Service via Unbounded Exponentiation in SpEL Expressions
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack when the power operator (^) is used with a BigDecimal or BigInteger operand and a large exponent value.
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Spring Framework 6.1.0 - 6.1.28
Spring Framework 6.0.0 - 6.0.30
Spring Framework 5.3.0 - 5.3.49
Spring Framework 5.2.25.RELEASE and earlier
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SF
Spring Framework · Spring
7.0.0 through 7.0.8; 6.2.0 through 6.2.19; 6.1.0 through 6.1.28; 6.0.0 through 6.0.30; 5.3.0 through 5.3.49; through 5.2.25.RELEASE · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47886
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47886
Vendor Advisory
https://spring.io/security/cve-2026-47886
More from Spring Framework
9.8
CVE-2026-59313
Server Sent Event stream corruption in Spring MVC functional web framework
9.8
CVE-2026-47892
Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints
9.8
CVE-2026-47891
Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder
9.8
CVE-2026-47890
Spring Framework Server Sent Event stream corruption while rendering fragments
9.8
CVE-2026-47884
Spring Framework Improper Path Limitation in XsltView