CVE-2026-47886 PUBLISHED

Spring Framework Denial of Service via Unbounded Exponentiation in SpEL Expressions

Assigner: vmware
Reserved: 20.05.2026 Published: 27.08.2026 Updated: 27.08.2026

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

Product Status

Vendor Spring
Product Spring Framework
Versions Default: unaffected
  • affected from 7.0.0 to 7.0.8 (incl.)
  • affected from 6.2.0 to 6.2.19 (incl.)
  • affected from 6.1.0 to 6.1.28 (incl.)
  • affected from 6.0.0 to 6.0.30 (incl.)
  • affected from 5.3.0 to 5.3.49 (incl.)
  • affected from 0 to 5.2.25.RELEASE (incl.)

References

Problem Types

  • CWE-400 Uncontrolled Resource Consumption CWE

Impacts

  • 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.