Vulnerability · Published Oct 15, 2026 · Assigned by mitre
CVE-2026-95155
High 7.5
In plain English
A high-severity security flaw in the libjackson-json-java package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 72.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
FasterXML Jackson 1.x, confirmed in jackson-mapper-asl versions 1.8.3, 1.9.2, 1.9.11, 1.9.12, and 1.9.13, allows attackers to cause a denial of service by supplying deeply nested JSON input to an application that deserializes untrusted JSON using ObjectMapper.readValue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | libjackson-json-java | no fix listed | UBUNTU-CVE-2026-95155 |
| Ubuntu:24.04:LTS | libjackson-json-java | no fix listed | UBUNTU-CVE-2026-95155 |
| Ubuntu:26.04:LTS | libjackson-json-java | no fix listed | UBUNTU-CVE-2026-95155 |
| Ubuntu:26.10 | libjackson-json-java | no fix listed | UBUNTU-CVE-2026-95155 |
Affected products (as reported)
Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H