Allocation of Resources Without Limits or Throttling in jackson-dataformats-text - CVE-2026-85278
Published: September 7, 2026
Vulnerability identifier: #VU147259
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-85278
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in the TOML parser's dotted-key handling when parsing untrusted TOML input containing deeply nested dotted keys. A remote attacker can submit a TOML document with a deeply nested dotted key to cause a denial of service.
Exploitation requires an application to parse externally supplied TOML input with TomlMapper.
Affected software
jackson-dataformats-text
How to mitigate CVE-2026-85278
Install security update from vendor's website.
jackson-dataformats-text - addressed in versions 2.18.10, 2.21.6, 3.1.6