CVE-2026-84851

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Source
https://cve.org/CVERecord?id=CVE-2026-84851
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84851.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-84851
Aliases
  • GHSA-9gfg-hgj4-gh44
Published
2026-09-02T20:19:55Z
Modified
2026-09-05T03:31:04Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Uncontrolled recursion in the Ion reader in Amazon Ion-C before 1.1.6
Details

An uncontrolled recursion issue exists in Amazon Ion-C versions before 1.1.6 that might allow a remote unauthenticated actor to craft Ion data that exhausts the native call stack and crashes the application using the library, resulting in a denial of service.

Database specific 
{
    "cna_assigner":  "AMZN",
    "cwe_ids":  [
        "CWE-674"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84851.json"
}
References

Affected packages

Git / github.com/amazon-ion/ion-c

Affected ranges

Type
GIT
Repo
https://github.com/amazon-ion/ion-c
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
493c12251be6ad93b924abb5cf8621e69f1dd2d5
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.1.6"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.5
v1.0.6
v1.1.0
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84851.json"