Bug 2491645

Summary:	CVE-2026-42790 erlang: Erlang OTP public_key: Certificate validation bypass allows hostname spoofing [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Mirco Geremia <mgeremia>
Component:	erlang	Assignee:	Richard W.M. Jones <rjones>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	epel10	CC:	jonathan, lemenkov, rhbugs, rjones
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["a0cb3193-741e-4092-9cfc-fff9c1781294"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-07-24 18:32:38 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Mirco Geremia 2026-06-23 08:07:21 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Peter Lemenkov 2026-07-24 18:32:38 UTC

Current Erlang builds for EL9 and EL10 are available from the CentOS Messaging SIG, which tracks upstream releases and carries security backports. The current build is erlang-26.2.5.21-4, which addresses this issue.

These packages work on RHEL, CentOS Stream, AlmaLinux, Rocky Linux and other RHEL-compatible distributions:

    dnf install centos-release-messaging
    dnf install erlang

Closing here, as Erlang updates for EL9 and EL10 are delivered through the Messaging SIG. Please reopen if the SIG builds don't cover your case.