RHSA-2026%3A15889

RHSA-2026%3A15889 PUBLISHED CVSS 8.800000190734863 HIGH

An update for thunderbird is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Risk Scores

CVSS 3.1

8.800000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
	Red Hat Enterprise Linux AppStream E4S (v.8.6)
	Red Hat Enterprise Linux AppStream TUS (v.8.6)
	thunderbird
	Red Hat Enterprise Linux AppStream AUS (v.8.6)

Timeline

May 11, 2026 CVE Published
May 18, 2026 Distribution Patch
May 18, 2026 Security Advisory
May 18, 2026 Security Advisory
May 18, 2026 Security Advisory
May 19, 2026 Distribution Patch
May 19, 2026 Security Advisory
May 19, 2026 Security Advisory
May 19, 2026 Security Advisory
Jun 25, 2026 CVE Updated

References

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