Vulnerability · Published Jan 27, 2026 · Assigned by GovTech CSG
CVE-2026-24819An out-of-memory (OOM) issue in foxinmy/weixin4j
Medium 6.3
In plain English
A medium-severity security flaw in weixin4j from foxinmy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 4.0)6.3Medium
Exploit odds (30 days)0.4%top 61.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improperly Controlled Sequential Memory Allocation vulnerability in foxinmy weixin4j (weixin4j-base/src/main/java/com/foxinmy/weixin4j/util modules). This vulnerability is associated with program files CharArrayBuffer.Java, ClassUtil.Java. This issue affects weixin4j.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | com.foxinmy:weixin4j-base | no fix listed | GHSA-444m-px7r-qpvv |
Affected products (as reported)
Weakness: CWE-1325 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:A/V:D/RE:M/U:Amber