Apache Traffic Server forwarded a malformed 302 response that should have been rejected as a parse error, because the Transfer-Encoding: chunked carve-out bypassed the rejection path. A response that two peers can read differently is then stored and served, allowing cache poisoning and response-framing desync. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 7
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-26 10:10
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-23 21:22
- StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 16:56
- StatusReceived → PublishedNVD modified 2026-10-21 18:26
- StatusPublished → ReceivedNVD modified 2026-10-21 19:16
- CVSS9.2 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/SA:N) → 9.2 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-21 19:16
- First seenCVSS 9.2 · apache software foundationNVD modified 2026-10-21 18:26
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.