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Medium

jackson-databind: Deeply nested JsonNode throws StackOverflowError for toString()

  • Disclosed: 23.06.2026
  • Updated: 11.10.2026 13:20

Impact

Potential Denial-of-Service when attacker sends deeply nested JSON if (and only if) service:

  1. Reads deeply nested (1000s of levels) JSON as JsonNode (ObjectMapper.readTree())
  2. Writes out same (or modifided) node using JsonNode.toString()

which can consume significant amount of resources with concurrent relatively small requests (1000 nested arrays is 2kB).

Patches

Fixed in 2.14.0 via https://github.com/FasterXML/jackson-databind/issues/3447.

Workarounds

Avoid serializing JsonNode using toString(): use ObjectMapper.writeValueAsString(node)

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) com.fasterxml.jackson.core:jackson-databind >= 2.10.0, < 2.14.0 2.14.0

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-400
Platform
Java / Kotlin (Maven)
Package
com.fasterxml.jackson.core:jackson-databind
Disclosed
23.06.2026
Updated
11.10.2026 13:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-3wrr-7qpf-2prh - CC BY 4.0

Vulnerability history: com.fasterxml.jackson.core:jackson-databind

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.

All (86) in the archive
Total entries
86
First → latest
10.2018 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 24
  • High 48
  • Medium 14

Disclosures per year

Severity:
  1. jackson-databind quadratic forward-reference completion
    High · 7.5 CVE-2026-91777 >= 2.19.0, < 2.21.7, >= 2.5.0, < 2.18.11, >= 2.22.0, < 2.22.3 2.21.7, 2.18.11, 2.22.3
  2. jackson-databind retains every unknown raw type ID
    High · 7.5 CVE-2026-91776 >= 2.0.0, < 2.18.11, >= 2.19.0, < 2.21.7, >= 2.22.0, < 2.22.3 2.18.11, 2.21.7, 2.22.3
  3. jackson-databind: Duration XMLGregorianCalendar Unbounded Number Parse DoS
    High · 7.5 CVE-2026-68497 >= 2.14.0, < 2.18.10, >= 2.19.0, < 2.21.6, >= 2.22.0, < 2.22.2 2.18.10, 2.21.6, 2.22.2
  4. jackson-databind has an array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)
    High · 8.1 CVE-2026-54513 >= 2.10.0, < 2.18.8, >= 2.19.0, < 2.21.4, >= 3.0.0, < 3.1.4 2.18.8, 2.21.4, 3.1.4
  5. jackson-databind has a PolymorphicTypeValidator bypass via generic type parameters that allows arbitrary class instantiation
    High · 8.1 CVE-2026-54512 >= 2.10.0, < 2.18.8, >= 3.0.0, < 3.1.4, >= 2.19.0, < 2.21.4 2.18.8, 3.1.4, 2.21.4
  6. jackson-databind: Deeply nested JsonNode throws StackOverflowError for toString() this entry
    Medium · 7.5 CVE-2026-50193 >= 2.10.0, < 2.14.0 2.14.0
  7. jackson-databind possible Denial of Service if using JDK serialization to serialize JsonNode
    High · 7.5 CVE-2021-46877 >= 2.10.0, < 2.12.6, >= 2.13.0, < 2.13.1 2.12.6, 2.13.1
  8. Uncontrolled Resource Consumption in Jackson-databind
    High · 7.5 CVE-2022-42003 >= 2.4.0-rc1, < 2.12.7.1, >= 2.13.0, < 2.13.4.2 2.12.7.1, 2.13.4.2
  9. Uncontrolled Resource Consumption in FasterXML jackson-databind
    High · 7.5 CVE-2022-42004 >= 2.4.0-rc1, < 2.12.7.1, >= 2.13.0, < 2.13.4 2.12.7.1, 2.13.4
  10. jackson-databind vulnerable to unsafe deserialization
    High · 8.1 CVE-2020-10650 < 2.9.10.4 2.9.10.4
  11. Deeply nested json in jackson-databind
    High · 7.5 CVE-2020-36518 >= 2.13.0, < 2.13.2.1, < 2.12.6.1 2.13.2.1, 2.12.6.1
  12. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36189 >= 2.7.0, < 2.9.10.8, < 2.6.7.5 2.9.10.8, 2.6.7.5
  13. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36187 >= 2.0.0, < 2.9.10.8 2.9.10.8
  14. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36188 >= 2.7.0, < 2.9.10.8, >= 2.0.0, < 2.6.7.5 2.9.10.8, 2.6.7.5
  15. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36183 >= 2.7.00, < 2.9.10.8, >= 2.0.0, < 2.6.7.5 2.9.10.8, 2.6.7.5
  16. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36184 >= 2.0.0, < 2.9.10.8 2.9.10.8
  17. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36180 >= 2.7.0, < 2.9.10.8, >= 2.0.0, < 2.6.7.5 2.9.10.8, 2.6.7.5
  18. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36181 >= 2.7.0, < 2.9.10.8, >= 2.0.0, < 2.6.7.5 2.9.10.8, 2.6.7.5
  19. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36185 >= 2.0.0, < 2.9.10.8 2.9.10.8
  20. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36179 >= 2.7.0, < 2.9.10.8, >= 2.0.0, < 2.6.7.5 2.9.10.8, 2.6.7.5
  21. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36182 >= 2.7.0, < 2.9.10.8, >= 2.0.0, < 2.6.7.5 2.9.10.8, 2.6.7.5
  22. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-24750 >= 2.0, < 2.6.7.5, >= 2.7.0, < 2.9.10.6 2.6.7.5, 2.9.10.6
  23. Serialization gadget exploit in jackson-databind
    High · 8.1 CVE-2020-35728 >= 2.0.0, < 2.9.10.8 2.9.10.8
  24. Serialization gadgets exploit in jackson-databind
    High · 8.1 CVE-2020-35491 >= 2.0.0, < 2.9.10.8 2.9.10.8
  25. Serialization gadgets exploit in jackson-databind
    High · 8.1 CVE-2020-35490 >= 2.0.0, < 2.9.10.8 2.9.10.8
  26. Code Injection in jackson-databind
    High · 8.1 CVE-2020-24616 >= 2.0.0, < 2.9.10.6 2.9.10.6
  27. Unsafe Deserialization in jackson-databind
    High · 8.1 CVE-2020-36186 >= 2.0.0, < 2.9.10.8 2.9.10.8
  28. XML External Entity (XXE) Injection in Jackson Databind
    High · 7.5 CVE-2020-25649 >= 2.6.0, < 2.6.7.4, >= 2.7.0.0, < 2.9.10.7, >= 2.10.0.0, < 2.10.5.1 2.6.7.4, 2.9.10.7, 2.10.5.1
  29. Deserialization of untrusted data in jackson-databind
    High · 8.1 CVE-2021-20190 >= 2.7.0, < 2.9.10.7, < 2.6.7.5 2.9.10.7, 2.6.7.5
  30. Deserialization of Untrusted Data in jackson-databind
    High · 8.1 CVE-2018-5968 >= 2.8.0, < 2.8.11.1, >= 2.9.0, < 2.9.4, < 2.7.9.5 2.8.11.1, 2.9.4, 2.7.9.5
  31. Deserialization of untrusted data in Jackson Databind
    High · 8.1 CVE-2020-14061 >= 2.9.0, < 2.9.10.5 2.9.10.5
  32. Deserialization of untrusted data in Jackson Databind
    High · 8.1 CVE-2020-14062 >= 2.9.0, < 2.9.10.5 2.9.10.5
  33. Deserialization of untrusted data in Jackson Databind
    High · 8.1 CVE-2020-14060 >= 2.9.0, < 2.9.10.5 2.9.10.5
  34. Deserialization of untrusted data in Jackson Databind
    High · 8.1 CVE-2020-14195 >= 2.9.0, < 2.9.10.5 2.9.10.5
  35. Deserialization of Untrusted Data
    High · 7.5 CVE-2018-12023 >= 2.7.0, < 2.7.9.4, >= 2.8.0, < 2.8.11.2, >= 2.9.0, < 2.9.6 2.7.9.4, 2.8.11.2, 2.9.6
  36. Improper Input Validation in jackson-databind
    Critical · 9.8 CVE-2019-17267 >= 2.9.0, < 2.9.10, < 2.8.11.5 2.9.10, 2.8.11.5
  37. jackson-databind mishandles the interaction between serialization gadgets and typing
    High · 8.8 CVE-2020-11112 >= 2.9.0, < 2.9.10.4 2.9.10.4
  38. jackson-databind mishandles the interaction between serialization gadgets and typing
    Critical · 9.8 CVE-2020-9547 >= 2.9.0, < 2.9.10.4, >= 2.8.0, < 2.8.11.6, >= 2.0.0, < 2.7.9.7 2.9.10.4, 2.8.11.6, 2.7.9.7
  39. Polymorphic deserialization of malicious object in jackson-databind
    High CVE-2019-14893 >= 2.9.0, < 2.9.10 2.9.10
  40. jackson-databind mishandles the interaction between serialization gadgets and typing
    High · 8.8 CVE-2020-10673 >= 2.7.0, < 2.9.10.4, >= 2.0.0, < 2.6.7.4 2.9.10.4, 2.6.7.4
Show more (20) Showing 40 of 73

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