CVE-2026-86511: Resource Consumption in java-json-tools jackson-coreutils
Description
CVE-2026-86511 is a medium severity vulnerability in java-json-tools jackson-coreutils version 2.0. It affects the BigDecimal.toPlainString function in the JacksonUtils.java file, leading to resource consumption when manipulated. The vulnerability can be exploited remotely without authentication. Public exploit code exists, but the vendor has not yet responded or issued a patch.
CVSS v4.0
6.9medium
Affected software
pkg:maven/com.github.java-json-tools/jackson-coreutilsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in jackson-coreutils 2.0 involves the BigDecimal.toPlainString function in src/main/java/com/github/fge/jackson/JacksonUtils.java. Manipulating this function can cause excessive resource consumption, potentially leading to denial of service. The vulnerability is remotely exploitable without privileges or user interaction. Although the issue was reported early, no vendor response or patch has been published. The CVSS 3.1 base score is 6.9 (medium severity) with vector AV:N/AC:L/PR:N/UI:N/VA:L.
Potential Impact
Exploitation of this vulnerability can cause resource exhaustion on affected systems, potentially leading to denial of service conditions. Since the attack can be initiated remotely without authentication, affected systems running jackson-coreutils 2.0 are at risk of being overwhelmed by crafted inputs targeting the BigDecimal.toPlainString function.
Mitigation Recommendations
No official patch or fix has been released by the vendor as of the current information. Users should monitor the vendor's advisories for updates. Until a fix is available, consider applying protective measures such as limiting exposure of affected components to untrusted networks or inputs, and employing resource usage limits where possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-2m62-p72c-jpc9
- Osv Schema Version
- 1.4.0
- Aliases
- CVE-2026-86511
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9f9103acd9273b49ff22f8
Added to database: 09/08/2026, 04:37:23 UTC
Last enriched: 09/29/2026, 05:20:06 UTC
Last updated: 10/24/2026, 08:47:04 UTC
Views: 52
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