CVE-2026-24819 An out-of-memory (OOM) issue in foxinmy/weixin4j
An out-of-memory vulnerability in the weixin4j library allows attackers to cause a denial of service through improper memory allocation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-24819?
CVE-2026-24819 is a medium-severity denial of service vulnerability in foxinmy weixin4j, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-1325
Which versions are affected by CVE-2026-24819?
2 open source packages ship an affected version, including com.foxinmy:weixin4j-base.
| Package | Affected | Fixed in |
|---|---|---|
com.foxinmy:weixin4j-base Maven | All versions to 1.10.2 | None |
com.foxinmy:weixin4j-base Maven | All versions to 1.10.2 | None |
How do I fix CVE-2026-24819?
No fix has been published for CVE-2026-24819 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-24819 being exploited?
There is no known exploitation of CVE-2026-24819 in the wild and no public exploit code.
Sources
Also known as GHSA-444m-px7r-qpvv.