Bug 2493399 (CVE-2026-57914)

Summary: CVE-2026-57914 apache-kerby: org.apache.kerby/kerby-asn1: Apache Kerby: Denial of Service via deeply nested ASN.1 structure
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: anujha, aschwart, asoldano, aszczucz, ataylor, bbaranow, bmaxwell, boliveir, bstansbe, chfoley, dlofthou, drichtar, ehugonne, gmalinko, istudens, ivassile, iweiss, janstey, jkoehler, lphiri, mosmerov, mposolda, msvehla, nwallace, pberan, pdelbell, pesilva, pjindal, pmackay, rgodfrey, rmartinc, rstancel, rstepani, ssilvert, sthorger, swoodman, thjenkin, vdosoudi, vmuzikar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Apache Kerby. A remote attacker could send a deeply nested Abstract Syntax Notation One (ASN.1) structure to an Apache Kerby client or service, triggering a stack overflow exception. This could lead to a denial of service (DoS) condition, making the service unavailable to legitimate users.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-06-26 12:01:19 UTC
By sending a deeply nested ASN1 structure to a Apache Kerby client or service, it's possible to trigger a StackOverFlow Exception which can lead to denial of service issues. Users are recommended to upgrade to version 2.1.2, which fixes this issue.