Security November 2026 CVE-2026-126353
Severity Moderate
CVSS base score 5.9
Impact Not stated
Exploitation detected Unknown: not stated by MSRC
Exploitability Not assessed
Publicly disclosed Unknown: not stated by MSRC
EPSS · 30-day forecast No EPSS score collected
Customer action Required: follow the MSRC remediation guidance More details
CVSS vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Public detection template No Nuclei template is listed in the current collected catalog
Component Mariner
Weakness CWE-1333: Inefficient Regular Expression Complexity
Issued by GitHub_M
Last revised 15 Nov 2026Information published. CVSS 3.1 base metrics Red raises the risk · green lowers it
Attack vector NetworkAV:N
Attack complexity HighAC:H
Privileges required NonePR:N
User interaction NoneUI:N
Scope UnchangedS:U
Confidentiality NoneC:N
Integrity NoneI:N
Availability HighA:H
0 KBs No KB listed No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.
Open Source Software
1 affected product
azl4 rubygem-addressable 2.8.6-9.azl4 on Azure Linux 4.0 Source. This summary comes from MSRC's public CVRF document for November 2026. If the MSRC page is blocked in your browser, the NVD and CVE.org records carry the same identifier. None of this says whether your devices are affected.
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15 Nov 2026 · 08:08:43 UTC
Last revised 13 Nov 2026 20:43 UTC → 15 Nov 2026 01:04 UTC Explore global source statements, affected packages and advisory history for CVE-2026-126353 . The catalog has a separate collection scope from Microsoft release records.
More advisories, affected versions and source history
Related advisories and sources Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-126353 · CVE overview and exploitation status
cve-program · CVE-2026-126353
Related changes Linked by CVE identifier