CVE-2026-95155
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductJackson 1.x
PublishedOct 15, 2026
First seenOct 15, 2026
Weakness typeCWE-674CWE-674
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| FasterXML Jackson 1.x | No range specified | — |
| FasterXML jackson-mapper-asl | 1.8.3 ≤ v ≤ 1.9.13 | — |
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