FasterXML jackson-databind through 2.8.10 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix

Summary

FasterXML jackson-databind through 2.8.10 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the Spring libraries are available in the classpath.

Timeline

1. Jan 10, 2018, 6:00 PM UTCCVE published
2. Aug 27, 2025, 8:31 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: yes · Technical impact: total

3. Aug 27, 2025, 8:31 PM UTCRecord last updated
4. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• n/a n/a

  Version range not reported

• com.fasterxml.jackson.core:jackson-databindMaven

  From 2.9.0 · fixed in 2.9.4

• com.fasterxml.jackson.core:jackson-databindMaven

  From 2.8.0 · fixed in 2.8.11

• com.fasterxml.jackson.core:jackson-databindMaven

  fixed in 2.7.9.2

References 27