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CVE-2026-33930 is a stack-based buffer overflow in Apache Traffic Server. During redirect handling, the server copies the client-supplied Host header into a fixed-size stack buffer without proper bounds checking. If redirect following is enabled, an attacker can supply an over-long Host header and trigger a stack overflow in the affected code path. The vulnerability affects Apache Traffic Server versions 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A stack-based buffer overflow vulnerability in Apache Traffic Server caused by copying an unbounded client Host header into a fixed-size stack buffer during redirect handling when redirect following is enabled.
A stack buffer overflow vulnerability in Apache Traffic Server triggered by an overly long Host header during redirect handling.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.