{"id":"OESA-2026-3778","summary":"perl-Authen-SASL security update","details":"Authen::SASL::Perl is the pure Perl implementation of SASL mechanisms in the Authen::SASL framework, At the time of this writing it provides the client part implementation for the following SASL mechanisms.\r\n\r\nSecurity Fix(es):\n\nAuthen::SASL::Perl::DIGEST_MD5 versions before 2.2100 for Perl accept replayed authentication responses via unverified nonce in server_step. server_start generates a fresh nonce and sends it in the challenge, and nothing later compares that value against the nonce the client returns. server_step derives the expected digest from the client's own parameters, so a response verifies whenever its digest matches the nonce it carries. The count table it also checks is keyed on the client-supplied nonce and starts empty in each new server object, so a captured first response, carrying `nc=00000001`, passes that too. RFC 2831 defines the nonce in the response as the value the server sent in the preceding challenge. An attacker who observes one successful `qop=auth` exchange can replay the captured response against a later session for the same service, host, realm and user, and authenticate as that user without knowing the password.(CVE-2026-86219)","modified":"2026-09-13T16:45:39.223326190Z","published":"2026-09-14T16:34:16Z","upstream":["CVE-2026-86219"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3778"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86219"}],"affected":[{"package":{"name":"perl-Authen-SASL","ecosystem":"openEuler:22.03-LTS-SP4","purl":"pkg:rpm/openEuler/perl-Authen-SASL&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.16-18.oe2203sp4"}]}],"ecosystem_specific":{"src":["perl-Authen-SASL-2.16-18.oe2203sp4.src.rpm"],"noarch":["perl-Authen-SASL-2.16-18.oe2203sp4.noarch.rpm","perl-Authen-SASL-help-2.16-18.oe2203sp4.noarch.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3778.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"}]}