CVE-2026-21452 MessagePack-Java Vulnerable to Remote Denial of Service via Malicious .msgpack Model File Triggering Unbounded EXT Payload Allocation
| Reporter | Title | Published | Views | Family All 44 |
|---|---|---|---|---|
 | MessagePack NodeJS/JavaScript msgpackr Heap Buffer Overflow DoS | 9 Jun 202600:00 | – | bdu_fstec |
 | CVE-2026-21452 vulnerabilities | 8 Jan 202601:28 | – | cgr |
 | CVE-2026-21452 | 2 Jan 202618:50 | – | circl |
 | MessagePack for Java security vulnerabilities | 2 Jan 202600:00 | – | cnnvd |
 | CVE-2026-21452 | 2 Jan 202620:47 | – | cve |
 | CVE-2026-21452 | 2 Jan 202620:47 | – | debiancve |
 | EUVD-2026-0750 | 5 Jan 202614:59 | – | euvd |
 | MessagePack for Java Vulnerable to Remote DoS via Malicious EXT Payload Allocation | 5 Jan 202614:59 | – | github |
 | CVE-2026-21452 | 2 Jan 202620:47 | – | mend |
 | CVE-2026-21452 | 2 Jan 202621:16 | – | nvd |
10
[
{
"vendor": "msgpack",
"product": "msgpack-java",
"versions": [
{
"version": "< 0.9.11",
"status": "affected"
}
]
}
]Data
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02 Jan 2026 20:47Current
CVSS 3.17.5
EPSS0.00602
SSVC