Vulnerability record/PUBLISHED/Published Oct 21, 2026 19:20:38 UTC
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.
Base score8.2/ 10
SeverityHighCVSS 4.0
Exploitability / impact
CVSS metric breakdown
Base severityHigh
Attack vectorNetworkAV
Attack complexityLowAC
Attack requirementsPresentAT
Privileges requiredNonePR
User interactionNoneUI
Vulnerable system confidentialityNoneVC
Vulnerable system integrityNoneVI
Vulnerable system availabilityHighVA
Subsequent system confidentialityNoneSC
Subsequent system integrityNoneSI
Subsequent system availabilityNoneSA
CVSS vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.
Record context
CVE Numbering Authorityapache
Last updatedOct 23, 2026 21:20:44 UTC
PublishedOct 21, 2026 19:20:38 UTC
ReservedOct 19, 2026 16:56:57 UTC
Credits
- Masaori Koshiba