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CVE-2026-5503

🗓️ 09 Apr 2026 23:17:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com

TLSX ECH SNI pollution exposes attacker publicName with no inner SNI; cleanup fails; overflow.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-5503
9 Apr 202622:35
attackerkb
AlpineLinux
CVE-2026-5503
9 Apr 202622:35
alpinelinux
Anthropic
ANT-2026-0JRYQPCF · wolfSSL · heap-buffer-overflow
29 Mar 202620:42
anthropic
CNNVD
wolfSSL(CyaSSL) 安全漏洞
9 Apr 202600:00
cnnvd
CVE
CVE-2026-5503
9 Apr 202622:35
cve
Cvelist
CVE-2026-5503 out-of-bounds write in TLSX_EchChangeSNI via attacker-controlled publicName
9 Apr 202622:35
cvelist
Debian CVE
CVE-2026-5503
9 Apr 202622:35
debiancve
EUVD
EUVD-2026-21234
10 Apr 202600:30
euvd
NVD
CVE-2026-5503
9 Apr 202623:17
nvd
OSV
DEBIAN-CVE-2026-5503
9 Apr 202623:17
osv
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu26.04anywolfssl0wolfssl_0_any.deb
Ubuntu18.04anywolfssl0wolfssl_0_any.deb
Ubuntu20.04anywolfssl0wolfssl_0_any.deb
Ubuntu22.04anywolfssl0wolfssl_0_any.deb
Ubuntu24.04anywolfssl0wolfssl_0_any.deb
Ubuntu25.10anywolfssl0wolfssl_0_any.deb

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16 Apr 2026 09:26Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.19.1
CVSS 46.9
EPSS0.00355
SSVC
0