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Vulnerability IntelligenceopenSUSE-SU-2026:21157-1

openSUSE-SU-2026:21157-1

HIGH7.4

Security update for golang-github-prometheus-alertmanager

Published Jun 25, 2026

Modified 1 months ago

Fix available

Details

Description of the patch:

This update for golang-github-prometheus-alertmanager fixes the following issues:

Changes in golang-github-prometheus-alertmanager:

CVE-2026-39821: Fix validation bypass and privilege escalation by updating golang.org/x/net to version 0.55.0 (bsc#1266615)

Affected Packages

golang-github-prometheus-alertmanager

openSUSE Leap 16.0

Fixed in:

0.28.1-bp160.2.1

References

https://bugzilla.suse.com/1266615

https://www.suse.com/security/cve/CVE-2026-39821/

https://www.suse.com/support/security/rating/

CVSS Analysis

CVSS v3.1

7.4

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

NoneA:N

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

Upstream

Ecosystems

openSUSE Leap 16.0

Timeline

PublishedJun 25, 2026

ModifiedJun 25, 2026

openSUSE-SU-2026:21157-1 | Mondoo Vulnerability Intelligence