CVE catalog
CVE-2026-90472
msgpack-java through 0.9.12 contains a stack overflow vulnerability in MessageUnpacker.unpackValue() that recursively deserializes arrays and maps without nesting depth limits. Attackers can craft pay
- Severity
- Medium · CVSS 6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.57% · Oct 25, 2026
msgpack-java through 0.9.12 contains a stack overflow vulnerability in MessageUnpacker.unpackValue() that recursively deserializes arrays and maps without nesting depth limits. Attackers can craft payloads with deeply nested arrays to exhaust the deserializing thread's stack and trigger StackOverflowError, causing per-request deserialization failures.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | msgpack-java | sid | 0.9.6-1 | vulnerable |
| Debian | msgpack-java | forky | 0.9.6-1 | vulnerable |
| Debian | msgpack-java | trixie | 0.9.6-1 | vulnerable |
| Debian | msgpack-java | bookworm | 0.9.3-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | msgpack-java | source | sid | (unfixed) | not yet assigned | Not reported | [1148828] |
| Debian | msgpack-java | source | forky | (unfixed) | not yet assigned | Not reported | [1148828] |
| Debian | msgpack-java | source | trixie | (unfixed) | not yet assigned | Not reported | [1148828] |
| Debian | msgpack-java | source | bookworm | (unfixed) | not yet assigned | Not reported | [1148828] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libmsgpack-java]Affected
Source package: [msgpack-java]
Details (2)
0.9.3-1· all · bookwormAffected
nvd · msgpack-java · debian · bookworm; nvd · msgpack-java · debian · 12
0.9.3-1· all · bookwormAffected
nvd · msgpack-java · debian · bookworm; nvd · msgpack-java · debian · 12
[Debian 13 (Trixie)]
- [libmsgpack-java]Affected
Source package: [msgpack-java]
Details (2)
0.9.6-1· all · trixieAffected
nvd · msgpack-java · debian · 13
0.9.6-1· all · trixieAffected
nvd · msgpack-java · debian · 13
Observed: