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CVE-2026-58164 is a high-severity memory-safety vulnerability in Apache Traffic Server caused by use-after-free and time-of-check/time-of-use errors in remap configuration handling. The flaw 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. The issue arises from incorrect lifetime management and race-prone handling of remap configuration objects, allowing code paths to access remap-related state after it has been freed or changed between validation and use. The resulting condition can lead to memory corruption, instability, and process termination during network-reachable request processing.
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No public exploit code observed for this vulnerability.
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8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability referenced in a Fedora security update for the trafficserver package; no further technical details are provided in the content.
A vulnerability referenced in a Fedora security update for the trafficserver package; specific technical details are not provided in the content.
A critical or high-severity vulnerability in Apache Traffic Server addressed by released security updates.
A vulnerability in Apache Traffic Server involving use-after-free and time-of-check/time-of-use errors in remap configuration handling, with availability impact emphasized by the provided CVSS vector.
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.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.