Quick answers
- Is CVE-2026-93494 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-93494 being exploited in the wild.
- How severe is CVE-2026-93494?
- High severity, with a CVSS score of 7.5, published 18 September 2026.
- Which products and versions are affected?
- Netty Project Netty.
- Is there a fix for CVE-2026-93494?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-93494 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-93494?
- Check whether you run Netty Project Netty. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The StompSubframeDecoder in Netty fails to release a ByteBuf when processing a STOMP frame body that is missing its terminating null byte, causing an unreleased buffer object and permanent memory leak. An attacker with network access can send specially crafted STOMP frames to trigger repeated buffer allocation without cleanup, leading to Denial of Service through memory exhaustion. A fix is implied to exist as this is a reported vulnerability with a CVE identifier.
Affected products
- Netty Project Netty
Timeline
- 2026-09-18: disclosed