What is CVE-2026-93561?

CVE-2026-93561 is a medium-severity vulnerability in Red Hat Build Of Apache Camel For Spring Boot 4, classified under CWE-1035. CVSS score: 6.5/10. Published 2026-09-18.

How severe is CVE-2026-93561?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Red Hat Build Of Apache Camel For Spring Boot 4

CVE-2026-93561

A flaw was found in io.netty/netty-codec-memcache. The Memcache binary protocol codec incorrectly reads `keyLength` and `extrasLength` as signed Java types instead of unsigned, as specified by the protocol. A malicious Memcache server can exploit this type mismatch by sending a specially crafted response. This can lead to frame desynchronization and response smuggling, where one client's data may be inadvertently exposed to another client's response stream in proxy or cache environments.

Published 2026-09-18 · last modified 2026-09-25.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (7.0th percentile), scored 2026-11-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.002 · change: -0.001

Affected products

Weakness classification (CWE)

CWE-1035

References

access.redhat.com/security/cve/CVE-2026-93561 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)

Frequently asked questions

What is CVE-2026-93561?: CVE-2026-93561 is a medium-severity vulnerability in Red Hat Build Of Apache Camel For Spring Boot 4, classified under CWE-1035. CVSS score: 6.5/10. Published 2026-09-18.
How severe is CVE-2026-93561?: Medium severity. CVSS v3 base score is 6.5 out of 10.