Bug 2491731

Summary: CVE-2026-42791 erlang: Erlang OTP: Authentication bypass due to improper OCSP certificate validation [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Mirco Geremia <mgeremia>
Component: erlangAssignee: Richard W.M. Jones <rjones>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: unspecified    
Version: epel10CC: jonathan, lemenkov, rhbugs, rjones
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["8b702bf7-4013-4609-ace4-16a304675ee7"]}
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Last Closed: 2026-07-24 18:33:15 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Mirco Geremia 2026-06-23 13:55:48 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 18:33:15 UTC 
Not affected — this flaw is specific to OTP 27.0 and later. The responder-certificate validity check involved sits in code that doesn't exist in the OTP 26 series, which is what both EPEL 9 and the CentOS Messaging SIG (erlang-26.2.5.21-4) ship.

For current EL9/EL10 Erlang builds generally, see `dnf install centos-release-messaging`.