Io.netty/netty-codec-stomp: netty: bytebuf leak in stompsubframedecoder when a frame body is never terminated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
A flaw was found in Netty's StompSubframeDecoder component. A remote attacker can exploit this vulnerability by sending a specially crafted STOMP frame body without its terminating null byte. This causes the decoder to allocate a ByteBuf (a buffer for bytes) that is never released, leading to a permanent memory leak. Over time, this uncontrolled memory consumption can result in a Denial of Service (DoS) for the application using the affected STOMP codec.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat build of Apache Camel for Spring Boot 4 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Fuse 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Single Sign-On 7 | — | — | No fix listed | CNA |
- Red Hat build of Apache Camel for Spring Boot 4 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Fuse 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat JBoss Enterprise Application Platform 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat JBoss Enterprise Application Platform 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat JBoss Enterprise Application Platform 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat JBoss Enterprise Application Platform 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Single Sign-On 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix planned: Will not fix |
| Red Hat Single Sign-On 7 | Affected | No fix planned: Will not fix |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet |
Not affected: 1 product
- Red Hat Fuse 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93494
- 2026-10-03 Alias added: GHSA-xvr4-c5q3-q5wm
- 2026-10-16 Affected versions changed · Red Hat
References
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Sources
- CVE-2026-93494 · CVE Program
- CVE-2026-93494 · NVD
- FIRST EPSS
- GHSA-xvr4-c5q3-q5wm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93494 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences