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erlang: Erlang OTP public_key: Certificate chain forgery via improper trust chain validation

🗓️ 13 Aug 2026 23:45:16Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Erlang OTP public_key module accepts non-CA certs as issuers, enabling certificate chain forgery.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin:Improper Chain of Trust in Erlang OTP's pubkey_cert Module Allows Certificate Forgery
7 Aug 202615:07
–ibm
freebsd
FreeBSD		Erlang/OTP -- public_key accepts non-CA certificate as intermediate issuer
27 May 202600:00
–freebsd
attackerkb
ATTACKERKB		CVE-2026-42789
27 May 202612:23
–attackerkb
cbl_mariner
CBLMariner		CVE-2026-42789 affecting package erlang for versions less than 26.2.5.21-1
10 Jun 202602:46
–cbl_mariner
cnnvd
CNNVD		Erlang/OTP 安全漏洞
27 May 202600:00
–cnnvd
cve
CVE		CVE-2026-42789
27 May 202612:23
–cve
cvelist
Cvelist		CVE-2026-42789 Non-CA certificate accepted as intermediate issuer in public_key path validation
27 May 202612:23
–cvelist
debiancve
Debian CVE		CVE-2026-42789
27 May 202612:23
–debiancve
nessus
Tenable Nessus		Erlang/OTP 17.0 < 26.2.5.21 / 27.0 < 27.3.4.12 / 28.0 < 28.5.0.1 / 29.0 < 29.0.1 Certificate Chain Forgery (CVE-2026-42789)
29 May 202600:00
–nessus
nessus
Tenable Nessus		FreeBSD : Erlang/OTP -- public_key accepts non-CA certificate as intermediate issuer (9357a450-5a54-11f1-b886-4c526214c986)
28 May 202600:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8ppc64leerlang-asn123.3.4.18-2.el8osterlang-asn1-23.3.4.18-2.el8ost.ppc64le.rpm
Red Hat Enterprise Linux8x86_64erlang-asn123.3.4.18-2.el8osterlang-asn1-23.3.4.18-2.el8ost.x86_64.rpm
Red Hat Enterprise Linux8ppc64leerlang-asn1-debuginfo23.3.4.18-2.el8osterlang-asn1-debuginfo-23.3.4.18-2.el8ost.ppc64le.rpm
Red Hat Enterprise Linux8x86_64erlang-asn1-debuginfo23.3.4.18-2.el8osterlang-asn1-debuginfo-23.3.4.18-2.el8ost.x86_64.rpm
Red Hat Enterprise Linux8ppc64leerlang-compiler23.3.4.18-2.el8osterlang-compiler-23.3.4.18-2.el8ost.ppc64le.rpm
Red Hat Enterprise Linux8x86_64erlang-compiler23.3.4.18-2.el8osterlang-compiler-23.3.4.18-2.el8ost.x86_64.rpm
Red Hat Enterprise Linux8ppc64leerlang-crypto23.3.4.18-2.el8osterlang-crypto-23.3.4.18-2.el8ost.ppc64le.rpm
Red Hat Enterprise Linux8x86_64erlang-crypto23.3.4.18-2.el8osterlang-crypto-23.3.4.18-2.el8ost.x86_64.rpm
Red Hat Enterprise Linux8ppc64leerlang-crypto-debuginfo23.3.4.18-2.el8osterlang-crypto-debuginfo-23.3.4.18-2.el8ost.ppc64le.rpm
Red Hat Enterprise Linux8x86_64erlang-crypto-debuginfo23.3.4.18-2.el8osterlang-crypto-debuginfo-23.3.4.18-2.el8ost.x86_64.rpm
Rows per page

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22 Aug 2026 08:40Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.14.8 - 8
CVSS 47
EPSS0.0033
SSVC
CWE-295
Erlang OTPpublic_key modulecertificate chain forgeryCWE-295improper trust validation
6