NULL pointer dereference in Apache Software Foundation Traffic Server
CVE-2026-112381
Apache Traffic Server can crash with a null pointer dereference when a client POST request is torn down via half-close while a chunked origin response is being reparsed from a reentrant write-ready callback, a timing-dependent race introduced by the CVE-2021-32564 flow-control backports. This issue affects Apache Traffic Server: 9.2.15, 10.1.4, 10.2.0. Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Apache Software Foundation Traffic Server — versions 10.1.4, 10.2.0, 9.2.15
Weakness classification (CWE)
References
- lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc (vendor-advisory)
Frequently asked questions
- What is CVE-2026-112381?
- CVE-2026-112381 is a medium-severity vulnerability in Apache Software Foundation Traffic Server, classified under NULL Pointer Dereference. CVSS score: 5.9/10. Published 2026-10-21.
- How severe is CVE-2026-112381?
- Medium severity. CVSS v3 base score is 5.9 out of 10.