CVE-2023-42276 json
hutool Buffer Overflow vulnerability
published 2023-09-08 3 y ago modified 2026-06-17 4 mo ago also GHSA-rxgf-r843-g53h , EUVD-2023-2592
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
hutool v5.8.21 was discovered to contain a buffer overflow via the component jsonArray.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/dromara/hutool/issues/3286 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | cn.hutool:hutool-core | <=5.8.21 |
no fix listed |
| maven | cn.hutool:hutool-json | <=5.8.21 |
no fix listed |
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
github.com
/dromara/hutool/commit/9ba8f9ca5dd32441f2e0f150cb22fa178bb771d3
web
-
github.com
/dromara/hutool/issues/3286
web, exploit, issue-tracking, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-42276
advisory
-
github.com
/dromara/hutool
package
Sources
- CVE List CVE-2023-42276
- GitHub Advisory GHSA-rxgf-r843-g53h
- NVD CVE-2023-42276
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.