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OpenAdvisories
Critical ALAS2-2026-3916 1 CVE

Critical: ipa security update (Amazon Linux 2)

Published Sep 8, 2026 · Updated Sep 8, 2026

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-76578: A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.

Fixed packages 12

ReleasePackageFixed in
Amazon Linux · 2 ipa-client 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-client-common 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-common 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-debuginfo 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-python-compat 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-server 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-server-common 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-server-dns 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 ipa-server-trust-ad 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 python2-ipaclient 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 python2-ipalib 0:4.6.8-5.amzn2.17.6
Amazon Linux · 2 python2-ipaserver 0:4.6.8-5.amzn2.17.6

Vulnerabilities 1

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-76578.html