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Vulnerabilities

Security fix · CVE-2026-50193

Deeply nested JsonNode throws StackOverflowError for toString()

Published May 28, 2026 · catalog updated Jun 5, 2026 · Deeply nested JsonNode throws

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-50193. EPSS is 0.62%. Act only if a listed version of Deeply nested JsonNode throws is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Deeply nested JsonNode throws).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.62%
Remediation
Not established
Affected products
maven com.fasterxml.jackson.core:jackson-databind

### 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 (ObjectMapper.readTree()) 2. Writes out same (or modifided) node using 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 using : use ObjectMapper.writeValueAsString(node) ### References

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • maven com.fasterxml.jackson.core:jackson-databind2.10.0 - 2.13.5

How to fix CVE-2026-50193

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    Seen in 2.10.0 - 2.13.5

  • Advisory

    Open the inventory_github record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-50193. EPSS is 0.62%. Act only if a listed version of Deeply nested JsonNode throws is installed.

Which versions are affected?

Compare what you have installed with 2.10.0 - 2.13.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.62%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Jackson security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 28, 2026 · Maintainer security tabs

    Detected

    ### 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 (ObjectMapper.readTree()) 2. Writes out same (or modifided) node using 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/Fast

  2. Jun 5, 2026 · Maintainer security tabs

    Updated

    ### 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 (ObjectMapper.readTree()) 2. Writes out same (or modifided) node using 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/Fast

Sources

  • Maintainer security tabsVendor advisoryGHSA-3wrr-7qpf-2prh

    ### 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 (ObjectMapper.readTree()) 2. Writes out same (or modifided) node using 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/Fast

    github.com

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Maintainer security tabsNov 2, 2026