CVE-2026-101356

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 42.4% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-20.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-20 13:46Z9 DAYS AGO

Last updated

2026-10-20 18:17Z9 DAYS AGO

Reserved

2026-09-28

Assigning CNA

apache

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
• CWE-488Exposure of Data Element to Wrong SessionBase

Data version

5.2

Document digest

a3d9d2feb21d2fbbaa8c50b91aa218e3b6abb946db8c1fdbb639bd71179b0a8d

• lists.apache.orghttps://lists.apache.org/thread.html/d1xjt7bbjqw7y7n5mcb4fm815hpfgc27vendor-advisory
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/10/20/27