Description
A flaw was found in Netty's `netty-handler-ssl-ocsp` component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protocol (OCSP) response that omits the optional `nextUpdate` field. This omission causes the OCSP validation to be silently skipped, leading to applications proceeding with an unvalidated certificate. This can result in a bypass of security controls where certificate validation is expected.
Published: 2026-09-18
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

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History

Fri, 18 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 18 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Title Netty: netty-handler-ssl-ocsp: io.netty/netty-handler-ssl-ocsp: netty: ocsp validation silently skipped when a response omits the optional nextupdate field Io.netty/netty-handler-ssl-ocsp: netty: ocsp validation silently skipped when a response omits the optional nextupdate field

Fri, 18 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}


Fri, 18 Sep 2026 08:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in Netty's `netty-handler-ssl-ocsp` component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protocol (OCSP) response that omits the optional `nextUpdate` field. This omission causes the OCSP validation to be silently skipped, leading to applications proceeding with an unvalidated certificate. This can result in a bypass of security controls where certificate validation is expected.
Title Netty: netty-handler-ssl-ocsp: io.netty/netty-handler-ssl-ocsp: netty: ocsp validation silently skipped when a response omits the optional nextupdate field
First Time appeared Redhat
Redhat camel Spring Boot
Weaknesses CWE-299
CPEs cpe:/a:redhat:camel_spring_boot:4
Vendors & Products Redhat
Redhat camel Spring Boot
References

Subscriptions

Redhat Camel Spring Boot
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-18T14:41:59.585Z

Reserved: 2026-09-18T07:17:42.853Z

Link: CVE-2026-93493

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-18T08:17:02.523

Modified: 2026-09-18T15:17:19.107

Link: CVE-2026-93493

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-10T00:41:42Z

Links: CVE-2026-93493 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-299

    Improper Check for Certificate Revocation