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CVE-2026-56820

🗓️ 21 Jul 2026 22:26:16Reported by Debian Security Bug TrackerType 
debiancve
 debiancve🔗 security-tracker.debian.org👁 2 Views

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and prior to 4.1.135.Final, OcspClient does not validate that the CertificateID in an OCSP response matches the ...

Related
Packages
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-56820
21 Jul 202622:26
–attackerkb
Circl		CVE-2026-56820
22 Jul 202602:59
–circl
CVE		CVE-2026-56820
21 Jul 202622:26
–cve
Cvelist		CVE-2026-56820 Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks
21 Jul 202622:26
–cvelist
EUVD		EUVD-2026-47582
22 Jul 202621:43
–euvd
Github Security Blog		Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks
22 Jul 202621:43
–github
NVD		CVE-2026-56820
21 Jul 202623:17
–nvd
OSV		CVE-2026-56820 Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks
21 Jul 202622:26
–osv
OSV		DEBIAN-CVE-2026-56820
21 Jul 202623:17
–osv
OSV		GHSA-272M-GCWP-MPWG Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks
22 Jul 202621:43
–osv
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian11allnetty1:4.1.48-4+deb11u3netty_1:4.1.48-4+deb11u3_all.deb
Debian12allnetty1:4.1.48-7+deb12u2netty_1:4.1.48-7+deb12u2_all.deb
Debian13allnetty1:4.1.48-10+deb13u1netty_1:4.1.48-10+deb13u1_all.deb
Debian14allnetty1:4.1.48-16netty_1:4.1.48-16_all.deb
Debian999allnetty1:4.1.48-16netty_1:4.1.48-16_all.deb

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21 Jul 2026 22:26Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.4
EPSS0.00296
SSVC
2