CVE-2026-112381 — MEDIUM (5.9)

Vulnerability Description

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.

CVSS Score

5.9

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-476

References

https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc

FAQ

What is CVE-2026-112381?

CVE-2026-112381 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 ca...

How severe is CVE-2026-112381?

CVE-2026-112381 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-112381?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.